This is zsh.info, produced by makeinfo version 4.0 from ./zsh.texi.

INFO-DIR-SECTION Utilities
START-INFO-DIR-ENTRY
* ZSH: (zsh).                     The Z Shell Manual.
END-INFO-DIR-ENTRY


File: zsh.info,  Node: Shell Builtin Commands,  Next: Zsh Line Editor,  Prev: Options,  Up: Top

Shell Builtin Commands
**********************

- SIMPLE COMMAND
     See *Note Precommand Modifiers::.

. FILE [ ARG ... ]
     Read commands from FILE and execute them in the current shell
     environment.

     If FILE does not contain a slash, or if PATH_DIRS is set, the
     shell looks in the components of $path to find the directory
     containing FILE.  Files in the current directory are not read
     unless `.' appears somewhere in $path.  If a file named `FILE.zwc'
     is found, is newer than FILE, and is the compiled form (created
     with the zcompile builtin) of FILE, then commands are read from
     that file instead of FILE.

     If any arguments ARG are given, they become the positional
     parameters; the old positional parameters are restored when the
     FILE is done executing.  The exit status is the exit status of the
     last command executed.

: [ ARG ... ]
     This command does nothing, although normal argument expansions is
     performed which may have effects on shell parameters.  A zero exit
     code is returned.

alias [ {+|-}gmrL ] [ NAME[=VALUE] ... ]
     For each NAME with a corresponding VALUE, define an alias with
     that value.  A trailing space in VALUE causes the next word to be
     checked for alias expansion.  If the -g flag is present, define a
     global alias; global aliases are expanded even if they do not
     occur in command position.

     For each NAME with no VALUE, print the value of NAME, if any.
     With no arguments, print all currently defined aliases.  If the -m
     flag is given the arguments are taken as patterns (they should be
     quoted to preserve them from being interpreted as glob patterns),
     and the aliases matching these patterns are printed.  When
     printing aliases and the -g or -r flags are present, then restrict
     the printing to global or regular aliases, respectively.  Using
     `+' instead of `-', or ending the option list with a single `+',
     prevents the values of the aliases from being printed.

     If the -L flag is present, then print each alias in a manner
     suitable for putting in a startup script.  The exit status is
     nonzero if a NAME (with no VALUE) is given for which no alias has
     been defined.

autoload [ {+|-}UXmt ] [ -wkz ] [ NAME ... ]
     Equivalent to functions -u, with the exception of -X/+X, -w, -k
     and -z.

     The flag -X may be used only inside a shell function, and may not
     be followed by a NAME.  It causes the calling function to be
     marked for autoloading and then immediately loaded and executed,
     with the current array of positional parameters as arguments.
     This replaces the previous definition of the function.  If no
     function definition is found, an error is printed and the function
     remains undefined and marked for autoloading.

     The flag +X attempts to load each NAME as an autoloaded function,
     but does _not_ execute it.  The exit status is zero (success) if
     the function was not previously defined _and_ a definition for it
     was found.  This does _not_ replace any existing definition of the
     function.  The exit status is nonzero (failure) if the function
     was already defined or when no definition was found.  In the
     latter case the function remains undefined and marked for
     autoloading.

     The flag +X may be combined with either -k or -z to make the
     function be loaded using ksh-style or zsh-style autoloading,
     respectively. If neither is given, the current setting of the
     KSH_AUTOLOAD options determines how the function is loaded. With
     ksh-style autoloading, the contents of the file will not be
     executed immediately. Instead, the function created will contain
     the contents of the file plus a call to the function itself
     appended to it, thus given normal ksh autoloading behaviour on the
     first call to the function.

     With the -w flag, the NAMEs are taken as names of files compiled
     with the zcompile builtin, and all functions defined in them are
     marked for autoloading.

bg [ JOB ... ]
JOB ... &
     Put each specified JOB in the background, or the current job if
     none is specified.

bindkey
     See *Note Zle Builtins::.

break [ N ]
     Exit from an enclosing for, while, until, select or repeat loop.
     If N is specified, then break N levels instead of just one.

builtin NAME [ ARGS ... ]
     Executes the builtin NAME, with the given ARGS.

bye
     Same as exit.

cap
     See *Note The zsh/cap Module::.

cd [ -sLP ] [ ARG ]
cd [ -sLP ] OLD NEW
cd [ -sLP ] {+|-}N
     Change the current directory.  In the first form, change the
     current directory to ARG, or to the value of $HOME if ARG is not
     specified.  If ARG is `-', change to the value of $OLDPWD, the
     previous directory.  Otherwise, if a directory named ARG is not
     found in the current directory and ARG does not begin with a
     slash, search each component of the shell parameter cdpath.  If no
     directory is found and the option CDABLE_VARS is set, and a
     parameter named ARG exists whose value begins with a slash, treat
     its value as the directory.  In that case, the parameter is added
     to the named directory hash table.

     The second form of cd substitutes the string NEW for the string
     OLD in the name of the current directory, and tries to change to
     this new directory.

     The third form of cd extracts an entry from the directory stack,
     and changes to that directory.  An argument of the form `+N'
     identifies a stack entry by counting from the left of the list
     shown by the dirs command, starting with zero.  An argument of the
     form `-N' counts from the right.  If the PUSHD_MINUS option is
     set, the meanings of `+' and `-' in this context are swapped.

     If the -s option is specified, cd refuses to change the current
     directory if the given pathname contains symlinks.  If the -P
     option is given or the CHASE_LINKS option is set, symbolic links
     are resolved to their true values.  If the -L option is given
     symbolic links are followed regardless of the state of the
     CHASE_LINKS option.

chdir
     Same as cd.

clone
     See *Note The zsh/clone Module::.

command SIMPLE COMMAND
     See *Note Precommand Modifiers::.

comparguments
     See *Note The zsh/computil Module::.

compcall
     See *Note The zsh/compctl Module::.

compctl
     See *Note The zsh/compctl Module::.

compdescribe
     See *Note The zsh/computil Module::.

compfiles
     See *Note The zsh/computil Module::.

compgroups
     See *Note The zsh/computil Module::.

compquote
     See *Note The zsh/computil Module::.

comptags
     See *Note The zsh/computil Module::.

comptry
     See *Note The zsh/computil Module::.

compvalues
     See *Note The zsh/computil Module::.

continue [ N ]
     Resume the next iteration of the enclosing for, while, until,
     select or repeat loop.  If N is specified, break out of N-1 loops
     and resume at the Nth enclosing loop.

declare
     Same as typeset.

dirs [ -c ] [ ARG ... ]
dirs [ -lpv ]
     With no arguments, print the contents of the directory stack.
     Directories are added to this stack with the pushd command, and
     removed with the cd or popd commands.  If arguments are specified,
     load them onto the directory stack, replacing anything that was
     there, and push the current directory onto the stack.

    -c
          clear the directory stack.

    -l
          print directory names in full instead of using of using ~
          expressions.

    -p
          print directory entries one per line.

    -v
          number the directories in the stack when printing.

disable [ -afmr ] NAME ...
     Temporarily disable the NAMEd hash table elements.  The default is
     to disable builtin commands.  This allows you to use an external
     command with the same name as a builtin command.  The -a option
     causes disable to act on aliases.  The -f option causes disable to
     act on shell functions.  The -r options causes disable to act on
     reserved words.  Without arguments all disabled hash table
     elements from the corresponding hash table are printed.  With the
     -m flag the arguments are taken as patterns (which should be
     quoted to prevent them from undergoing filename expansion), and
     all hash table elements from the corresponding hash table matching
     these patterns are disabled.  Disabled objects can be enabled with
     the enable command.

disown [ JOB ... ]
JOB ... &|
JOB ... &!
     Remove the specified JOBs from the job table; the shell will no
     longer report their status, and will not complain if you try to
     exit an interactive shell with them running or stopped.  If no JOB
     is specified, disown the current job.

     If the JOBs are currently stopped and the AUTO_CONTINUE option is
     not set, a warning is printed containing information about how to
     make them running after they have been disowned.  If one of the
     latter two forms is used, the JOBs will automatically be made
     running, independent of the setting of the AUTO_CONTINUE option.

echo [ -neE ] [ ARG ... ]
     Write each ARG on the standard output, with a space separating
     each one.  If the -n flag is not present, print a newline at the
     end.  echo recognizes the following escape sequences:

    \a
          bell character

    \b
          backspace

    \c
          suppress final newline

    \e
          escape

    \f
          form feed

    \n
          linefeed (newline)

    \r
          carriage return

    \t
          horizontal tab

    \v
          vertical tab

    \\
          backslash

    \0NNN
          character code in octal

    \xNN
          character code in hexadecimal

    \uNNNN
          unicode character code in hexadecimal

    \UNNNNNNNN
          unicode character code in hexadecimal

     The -E flag, or the BSD_ECHO option, can be used to disable these
     escape sequences.  In the latter case, -e flag can be used to
     enable them.

echotc
     See *Note The zsh/termcap Module::.

echoti
     See *Note The zsh/terminfo Module::.

emulate [ -LR ] {zsh|sh|ksh|csh}
     Set up zsh options to emulate the specified shell as much as
     possible.  `csh' will never be fully emulated.  If the argument is
     not one of the shells listed above, zsh will be used as a default;
     more precisely, the tests performed on the argument are the same
     as those used to determine the emulation at startup based on the
     shell name, see *Note Compatibility:: .  If the -R option is
     given, all options are reset to their default value corresponding
     to the specified emulation mode, except for certain options
     describing the interactive environment; otherwise, only those
     options likely to cause portability problems in scripts and
     functions are altered.  If the -L option is given, the options
     LOCAL_OPTIONS and LOCAL_TRAPS will be set as well, causing the
     effects of the emulate command and any setopt and trap commands to
     be local to the immediately surrounding shell function, if any;
     normally these options are turned off in all emulation modes
     except ksh.

enable [ -afmr ] NAME ...
     Enable the NAMEd hash table elements, presumably disabled earlier
     with disable.  The default is to enable builtin commands.  The -a
     option causes enable to act on aliases.  The -f option causes
     enable to act on shell functions.  The -r option causes enable to
     act on reserved words.  Without arguments all enabled hash table
     elements from the corresponding hash table are printed.  With the
     -m flag the arguments are taken as patterns (should be quoted) and
     all hash table elements from the corresponding hash table matching
     these patterns are enabled.  Enabled objects can be disabled with
     the disable builtin command.

eval [ ARG ... ]
     Read the arguments as input to the shell and execute the resulting
     command in the current shell process.

exec SIMPLE COMMAND
     See *Note Precommand Modifiers::.

exit [ N ]
     Exit the shell with the exit code specified by N; if none is
     specified, use the exit code from the last command executed.  An
     EOF condition will also cause the shell to exit, unless the
     IGNORE_EOF option is set.

export [ NAME[=VALUE] ... ]
     The specified NAMEs are marked for automatic export to the
     environment of subsequently executed commands.  Equivalent to
     typeset -gx.  If a parameter specified does not already exist, it
     is created in the global scope.

false [ ARG ... ]
     Do nothing and return an exit code of 1.

fc [ -e ENAME ] [ -nlrdDfEim ] [ OLD=NEW ... ] [ FIRST [ LAST ] ]
fc -ARWI [ FILENAME ]
     Select a range of commands from FIRST to LAST from the history
     list.  The arguments FIRST and LAST may be specified as a number
     or as a string.  A negative number is used as an offset to the
     current history event number.  A string specifies the most recent
     event beginning with the given string.  All substitutions OLD=NEW,
     if any, are then performed on the commands.

     If the -l flag is given, the resulting commands are listed on
     standard output.  If the -m flag is also given the first argument
     is taken as a pattern (should be quoted) and only the history
     events matching this pattern will be shown.  Otherwise the editor
     program ENAME is invoked on a file containing these history
     events.  If ENAME is not given, the value of the parameter FCEDIT
     is used.  If ENAME is `-', no editor is invoked.  When editing is
     complete, the edited command is executed.

     If FIRST is not specified, it will be set to -1 (the most recent
     event), or to -16 if the -l flag is given.  If LAST is not
     specified, it will be set to FIRST, or to -1 if the -l flag is
     given.

     The flag -r reverses the order of the commands and the flag -n
     suppresses command numbers when listing.  Also when listing, -d
     prints timestamps for each command, and -f prints full time-date
     stamps.  Adding the -E flag causes the dates to be printed as
     `DD.MM.YYYY', instead of the default `MM/DD/YYYY'.  Adding the -i
     flag causes the dates to be printed in ISO8601 `YYYY-MM-DD' format.
     With the -D flag, fc prints elapsed times.

     `fc -R' reads the history from the given file, `fc -W' writes the
     history out to the given file, and `fc -A' appends the history out
     to the given file.  If no filename is specified, the $HISTFILE is
     assumed.  If the -I option is added to -R, only those events that
     are not already contained within the internal history list are
     added.  If the -I option is added to -A or -W, only those events
     that are new since last incremental append/write to the history
     file are appended/written.  In any case, the created file will
     have no more than $SAVEHIST entries.

fg [ JOB ... ]
JOB ...
     Bring each specified JOB in turn to the foreground.  If no JOB is
     specified, resume the current job.

float [ {+|-}EFHghlprtux ] [ NAME[=VALUE] ... ]
     Equivalent to typeset -E, except that options irrelevant to
     floating point numbers are not permitted.

functions [ {+|-}UXmtu ] [ NAME ... ]
     Equivalent to typeset -f.

getcap
     See *Note The zsh/cap Module::.

getln [ -AclneE ] NAME ...
     Read the top value from the buffer stack and put it in the shell
     parameter name.  Equivalent to read -zr.

getopts OPTSTRING NAME [ ARG ... ]
     Checks the ARGs for legal options.  If the ARGs are omitted, use
     the positional parameters.  A valid option argument begins with a
     `+' or a `-'.  An argument not beginning with a `+' or a `-', or
     the argument `-', ends the options.  Note that a single `-' is not
     considered a valid option argument.  OPTSTRING contains the
     letters that getopts recognizes.  If a letter is followed by a
     `:', that option is expected to have an argument.  The options can
     be separated from the argument by blanks.

     Each time it is invoked, getopts places the option letter it finds
     in the shell parameter NAME, prepended with a `+' when ARG begins
     with a `+'.  The index of the next ARG is stored in OPTIND.  The
     option argument, if any, is stored in OPTARG.

     The first option to be examined may be changed by explicitly
     assigning to OPTIND.  OPTIND has an initial value of 1, and is
     normally reset to 1 upon exit from a shell function.  OPTARG is
     not reset and retains its value from the most recent call to
     getopts.  If either of OPTIND or OPTARG is explicitly unset, it
     remains unset, and the index or option argument is not stored.
     The option itself is still stored in NAME in this case.

     A leading `:' in OPTSTRING causes getopts to store the letter of
     any invalid option in OPTARG, and to set NAME to `?' for an
     unknown option and to `:' when a required option is missing.
     Otherwise, getopts sets NAME to `?' and prints an error message
     when an option is invalid.  The exit status is nonzero when there
     are no more options.

hash [ -Ldfmrv ] [ NAME[=VALUE] ] ...
     hash can be used to directly modify the contents of the command
     hash table, and the named directory hash table.  Normally one would
     modify these tables by modifying one's PATH (for the command hash
     table) or by creating appropriate shell parameters (for the named
     directory hash table).  The choice of hash table to work on is
     determined by the -d option; without the option the command hash
     table is used, and with the option the named directory hash table
     is used.

     Given no arguments, and neither the -r or -f options, the selected
     hash table will be listed in full.

     The -r option causes the selected hash table to be emptied.  It
     will be subsequently rebuilt in the normal fashion.  The -f option
     causes the selected hash table to be fully rebuilt immediately.
     For the command hash table this hashes all the absolute
     directories in the PATH, and for the named directory hash table
     this adds all users' home directories.  These two options cannot
     be used with any arguments.

     The -m option causes the arguments to be taken as patterns (which
     should be quoted) and the elements of the hash table matching
     those patterns are printed.  This is the only way to display a
     limited selection of hash table elements.

     For each NAME with a corresponding VALUE, put `NAME' in the
     selected hash table, associating it with the pathname `VALUE'.  In
     the command hash table, this means that whenever `NAME' is used as
     a command argument, the shell will try to execute the file given
     by `VALUE'.  In the named directory hash table, this means that
     `VALUE' may be referred to as `~NAME'.

     For each NAME with no corresponding VALUE, attempt to add NAME to
     the hash table, checking what the appropriate value is in the
     normal manner for that hash table.  If an appropriate value can't
     be found, then the hash table will be unchanged.

     The -v option causes hash table entries to be listed as they are
     added by explicit specification.  If has no effect if used with -f.

     If the -L flag is present, then each hash table entry is printed in
     the form of a call to hash.

history
     Same as fc -l.

integer [ {+|-}Hghilprtux ] [ NAME[=VALUE] ... ]
     Equivalent to typeset -i, except that options irrelevant to
     integers are not permitted.

jobs [ -dlprs ] [ JOB ... ]
jobs -Z STRING
     Lists information about each given job, or all jobs if JOB is
     omitted.  The -l flag lists process IDs, and the -p flag lists
     process groups.  If the -r flag is specified only running jobs
     will be listed and if the -s flag is given only stopped jobs are
     shown.  If the -d flag is given, the directory from which the job
     was started (which may not be the current directory of the job)
     will also be shown.

     The -Z option replaces the shell's argument and environment space
     with the given string, truncated if necessary to fit.  This will
     normally be visible in ps (man page ps(1)) listings.  This feature
     is typically used by daemons, to indicate their state.

kill [ -s SIGNAL_NAME | -n SIGNAL_NUMBER | -SIG ] JOB ...
kill -l [ SIG ... ]
     Sends either SIGTERM or the specified signal to the given jobs or
     processes.  Signals are given by number or by names, with or
     without the `SIG' prefix.  If the signal being sent is not `KILL'
     or `CONT', then the job will be sent a `CONT' signal if it is
     stopped.  The argument JOB can be the process ID of a job not in
     the job list.  In the second form, kill -l, if SIG is not
     specified the signal names are listed.  Otherwise, for each SIG
     that is a name, the corresponding signal number is listed.  For
     each SIG that is a signal number or a number representing the exit
     status of a process which was terminated or stopped by a signal
     the name of the signal is printed.

let ARG ...
     Evaluate each ARG as an arithmetic expression.  See *Note
     Arithmetic Evaluation:: for a description of arithmetic
     expressions.  The exit status is 0 if the value of the last
     expression is nonzero, and 1 otherwise.

limit [ -hs ] [ RESOURCE [ LIMIT ] ] ...
     Set or display resource limits.  Unless the -s flag is given, the
     limit applies only the children of the shell.  If -s is given
     without other arguments, the resource limits of the current shell
     is set to the previously set resource limits of the children.

     If LIMIT is not specified, print the current limit placed on
     RESOURCE, otherwise set the limit to the specified value.  If the
     -h flag is given, use hard limits instead of soft limits.  If no
     RESOURCE is given, print all limits.

     RESOURCE can be one of:

    addressspace
          Maximum amount of address space used.

    aiomemorylocked
          Maximum amount of memory locked in RAM for AIO operations.

    aiooperations
          Maximum number of AIO operations.

    cachedthreads
          Maximum number of cached threads.

    coredumpsize
          Maximum size of a core dump.

    cputime
          Maximum CPU seconds per process.

    datasize
          Maximum data size (including stack) for each process.

    descriptors
          Maximum value for a file descriptor.

    filesize
          Largest single file allowed.

    maxproc
          Maximum number of processes.

    maxpthreads
          Maximum number of threads per process.

    memorylocked
          Maximum amount of memory locked in RAM.

    memoryuse
          Maximum resident set size.

    resident
          Maximum resident set size.

    sockbufsize
          Maximum size of all socket buffers.

    stacksize
          Maximum stack size for each process.

    vmemorysize
          Maximum amount of virtual memory.

     Which of these resource limits are available depends on the system.
     RESOURCE can be abbreviated to any unambiguous prefix.

     LIMIT is a number, with an optional scaling factor, as follows:

    Nh
          hours

    Nk
          kilobytes (default)

    Nm
          megabytes or minutes

    [MM:]SS
          minutes and seconds

local [ {+|-}AEFHLRUZahilprtux [N]] [ NAME[=VALUE] ] ...
     Same as typeset, except that the options -g, and -f are not
     permitted.  In this case the -x option does not force the use of
     -g, i.e. exported variables will be local to functions.

log
     List all users currently logged in who are affected by the current
     setting of the watch parameter.

logout [ N ]
     Same as exit, except that it only works in a login shell.

noglob SIMPLE COMMAND
     See *Note Precommand Modifiers::.

popd [ {+|-}N ]
     Remove an entry from the directory stack, and perform a cd to the
     new top directory.  With no argument, the current top entry is
     removed.  An argument of the form `+N' identifies a stack entry by
     counting from the left of the list shown by the dirs command,
     starting with zero.  An argument of the form -n counts from the
     right.  If the PUSHD_MINUS option is set, the meanings of `+' and
     `-' in this context are swapped.

print [ -abcDilmnNoOpPrsz ] [ -uN ] [ -f FORMAT ] [ -C COLS ]
[ -R [ -en ]] [ ARG ... ]
     With the `-f' option the arguments are printed as described by
     printf.  With no flags or with the flag `-', the arguments are
     printed on the standard output as described by echo, with the
     following differences: the escape sequence `\M-X' metafies the
     character X (sets the highest bit), `\C-X' produces a control
     character (`\C-@' and `\C-?' give the characters NUL and delete),
     and `\E' is a synonym for `\e'.  Finally, if not in an escape
     sequence, `\' escapes the following character and is not printed.

    -a
          Print arguments with the column incrementing first.  Only
          useful with the -c and -C options.

    -b
          Recognize all the escape sequences defined for the bindkey
          command, see *Note Zle Builtins::.

    -c
          Print the arguments in columns.  Unless -a is also given,
          arguments are printed with the row incrementing first.

    -C COLS
          Print the arguments in COLS columns.  Unless -a is also given,
          arguments are printed with the row incrementing first.

    -D
          Treat the arguments as directory names, replacing prefixes
          with ~ expressions, as appropriate.

    -i
          If given together with -o or -O, sorting is performed
          case-independently.

    -l
          Print the arguments separated by newlines instead of spaces.

    -m
          Take the first argument as a pattern (should be quoted), and
          remove it from the argument list together with subsequent
          arguments that do not match this pattern.

    -n
          Do not add a newline to the output.

    -N
          Print the arguments separated and terminated by nulls.

    -o
          Print the arguments sorted in ascending order.

    -O
          Print the arguments sorted in descending order.

    -p
          Print the arguments to the input of the coprocess.

    -P
          Perform prompt expansion (see *Note Prompt Expansion::).

    -r
          Ignore the escape conventions of echo.

    -R
          Emulate the BSD echo command, which does not process escape
          sequences unless the -e flag is given.  The -n flag
          suppresses the trailing newline.  Only the -e and -n flags
          are recognized after -R; all other arguments and options are
          printed.

    -s
          Place the results in the history list instead of on the
          standard output.

    -uN
          Print the arguments to file descriptor N.

    -z
          Push the arguments onto the editing buffer stack, separated
          by spaces.

     If any of `-m', `-o' or `-O' are used in combination with `-f' and
     there are no arguments (after the removal process in the case of
     `-m') then nothing is printed.

printf FORMAT [ ARG ... ]
     Print the arguments according to the format specification.
     Formatting rules are the same as used in C. The same escape
     sequences as for echo are recognised in the format. All C
     conversion specifications ending in one of csdiouxXeEfgGn are
     handled. In addition to this, `%b' can be used instead of `%s' to
     cause escape sequences in the argument to be recognised and `%q'
     can be used to quote the argument in such a way that allows it to
     be reused as shell input. With the numeric format specifiers, if
     the corresponding argument starts with a quote character, the
     numeric value of the following character is used as the number to
     print otherwise the argument is evaluated as an arithmetic
     expression. See *Note Arithmetic Evaluation:: for a description of
     arithmetic expressions. With `%n', the corresponding argument is
     taken as an identifier which is created as an integer parameter.

     Normally, conversion specifications are applied to each argument
     in order but they can explicitly specify the Nth argument is to be
     used by replacing `%' by `%N$' and `*' by `*N$'.  It is
     recommended that you do not mix references of this explicit style
     with the normal style and the handling of such mixed styles may be
     subject to future change.

     If arguments remain unused after formatting, the format string is
     reused until all arguments have been consumed. With the print
     builtin, this can be suppressed by using the -r option. If more
     arguments are required by the format than have been specified, the
     behaviour is as if zero or an empty string had been specified as
     the argument.

pushd [ -sLP ] [ ARG ]
pushd [ -sLP ] OLD NEW
pushd [ -sLP ] {+|-}N
     Change the current directory, and push the old current directory
     onto the directory stack.  In the first form, change the current
     directory to ARG.  If ARG is not specified, change to the second
     directory on the stack (that is, exchange the top two entries), or
     change to $HOME if the PUSHD_TO_HOME option is set or if there is
     only one entry on the stack.  Otherwise, ARG is interpreted as it
     would be by cd.  The meaning of OLD and NEW in the second form is
     also the same as for cd.

     The third form of pushd changes directory by rotating the
     directory list.  An argument of the form `+N' identifies a stack
     entry by counting from the left of the list shown by the dirs
     command, starting with zero.  An argument of the form `-N' counts
     from the right.  If the PUSHD_MINUS option is set, the meanings of
     `+' and `-' in this context are swapped.

     If the option PUSHD_SILENT is not set, the directory stack will be
     printed after a pushd is performed.

     The options -s, -L and -P have the same meanings as for the cd
     builtin.

pushln [ ARG ... ]
     Equivalent to print -nz.

pwd [ -rLP ]
     Print the absolute pathname of the current working directory.  If
     the -r or the -P flag is specified, or the CHASE_LINKS option is
     set and the -L flag is not given, the printed path will not
     contain symbolic links.

r
     Same as fc -e -.

read [ -rszpqAclneE ] [ -t [ NUM ] ] [ -k [ NUM ] ] [ -d DELIM ] [ -uN ] [ NAME[?PROMPT] ] [ NAME ...  ]
     Read one line and break it into fields using the characters in
     $IFS as separators, except as noted below.  The first field is
     assigned to the first NAME, the second field to the second NAME,
     etc., with leftover fields assigned to the last NAME.  If NAME is
     omitted then REPLY is used for scalars and reply for arrays.

    -r
          Raw mode: a `\' at the end of a line does not signify line
          continuation and backslashes in the line don't quote the
          following character and are not removed.

    -s
          Don't echo back characters if reading from the terminal.
          Currently does not work with the -q option.

    -q
          Read only one character from the terminal and set NAME to `y'
          if this character was `y' or `Y' and to `n' otherwise.  With
          this flag set the return value is zero only if the character
          was `y' or `Y'.  Note that this always reads from the
          terminal, even if used with the -p or -u or -z flags or with
          redirected input.  This option may also be used within zle
          widgets.

    -k [ NUM ]
          Read only one (or NUM) characters.  All are assigned to the
          first NAME, without word splitting.  This flag is ignored
          when -q is present.  Input is read from the terminal unless
          one of -u or -p is present.  This option may also be used
          within zle widgets.

    -z
          Read one entry from the editor buffer stack and assign it to
          the first NAME, without word splitting.  Text is pushed onto
          the stack with `print -z' or with push-line from the line
          editor (see *Note Zsh Line Editor::).  This flag is ignored
          when the -k or -q flags are present.

    -e
    -E
          The input read is printed (echoed) to the standard output.
          If the -e flag is used, no input is assigned to the
          parameters.

    -A
          The first NAME is taken as the name of an array and all words
          are assigned to it.

    -c
    -l
          These flags are allowed only if called inside a function used
          for completion (specified with the -K flag to compctl).  If
          the -c flag is given, the words of the current command are
          read. If the -l flag is given, the whole line is assigned as
          a scalar.  If both flags are present, -l is used and -c is
          ignored.

    -n
          Together with -c, the number of the word the cursor is on is
          read.  With -l, the index of the character the cursor is on is
          read.  Note that the command name is word number 1, not word
          0, and that when the cursor is at the end of the line, its
          character index is the length of the line plus one.

    -uN
          Input is read from file descriptor N.

    -p
          Input is read from the coprocess.

    -d DELIM
          Input is terminated by the first character of DELIM instead of
          by newline.

    -t [ NUM ]
          Test if input is available before attempting to read.  If NUM
          is present, it must begin with a digit and will be evaluated
          to give a number of seconds, which may be a floating point
          number; in this case the read times out if input is not
          available within this time.  If NUM is not present, it is
          taken to be zero, so that read returns immediately if no
          input is available.  If no input is available, return status
          1 and do not set any variables.

          This option is not available when reading from the editor
          buffer with -z, when called from within completion with -c or
          -l, with -q which clears the input queue before reading, or
          within zle where other mechanisms should be used to test for
          input.

          Note that read does not attempt to alter the input processing
          mode.  The default mode is canonical input, in which an
          entire line is read at a time, so usually `read -t' will not
          read anything until an entire line has been typed.  However,
          when reading from the terminal with -k input is processed one
          key at a time; in this case, only availability of the first
          character is tested, so that e.g. `read -t -k 2' can still
          block on the second character.  Use two instances of `read -t
          -k' if this is not what is wanted.

     If the first argument contains a `?', the remainder of this word
     is used as a PROMPT on standard error when the shell is
     interactive.

     The value (exit status) of read is 1 when an end-of-file is
     encountered, or when -c or -l is present and the command is not
     called from a compctl function, or as described for -q.  Otherwise
     the value is 0.

     The behavior of some combinations of the -k, -p, -q, -u and -z
     flags is undefined.  Presently -q cancels all the others, -p
     cancels -u, -k cancels -z, and otherwise -z cancels both -p and -u.

     The -c or -l flags cancel any and all of -kpquz.

readonly
     Same as typeset -r.

rehash
     Same as hash -r.

return [ N ]
     Causes a shell function or . script to return to the invoking
     script with the return status specified by N.  If N is omitted,
     the return status is that of the last command executed.

     If return was executed from a trap in a TRAPNAL function, the
     effect is different for zero and non-zero return status.  With zero
     status (or after an implicit return at the end of the trap), the
     shell will return to whatever it was previously processing; with a
     non-zero status, the shell will behave as interrupted except that
     the return status of the trap is retained.  Note that the numeric
     value of the signal which caused the trap is passed as the first
     argument, so the statement `return $((128+$1))' will return the
     same status as if the signal had not been trapped.

sched
     See *Note The zsh/sched Module::.

set [ {+|-}OPTIONS | {+|-}o [ OPTION_NAME ] ] ... [ {+|-}A [ NAME ] ] [ ARG ... ]
     Set the options for the shell and/or set the positional
     parameters, or declare and set an array.  If the -s option is
     given, it causes the specified arguments to be sorted before
     assigning them to the positional parameters (or to the array NAME
     if -A is used).  With +s sort arguments in descending order.  For
     the meaning of the other flags, see *Note Options::.  Flags may be
     specified by name using the -o option. If no option name is
     supplied with -o, the current option states are printed.  With +o
     they are printed in a form that can be used as input to the shell.

     If the -A flag is specified, NAME is set to an array containing
     the given ARGs; if no NAME is specified, all arrays are printed
     together with their values.

     If +A is used and NAME is an array, the given arguments will
     replace the initial elements of that array; if no NAME is
     specified, all arrays are printed without their values.

     The behaviour of arguments after -A NAME or +A NAME depends on
     whether the option KSH_ARRAYS is set.  If it is not set, all
     arguments following NAME are treated as values for the array,
     regardless of their form.  If the option is set, normal option
     processing continues at that point; only regular arguments are
     treated as values for the array.  This means that

          set -A array -x -- foo

     sets array to `-x - foo' if KSH_ARRAYS is not set, but sets the
     array to foo and turns on the option `-x' if it is set.

     If the -A flag is not present, but there are arguments beyond the
     options, the positional parameters are set.  If the option list
     (if any) is terminated by `--', and there are no further
     arguments, the positional parameters will be unset.

     If no arguments and no `--' are given, then the names and values of
     all parameters are printed on the standard output.  If the only
     argument is `+', the names of all parameters are printed.

setcap
     See *Note The zsh/cap Module::.

setopt [ {+|-}OPTIONS | {+|-}o OPTION_NAME ] [ NAME ... ]
     Set the options for the shell.  All options specified either with
     flags or by name are set.  If no arguments are supplied, the names
     of all options currently set are printed.  If the -m flag is given
     the arguments are taken as patterns (which should be quoted to
     protect them from filename expansion), and all options with names
     matching these patterns are set.

shift [ N ] [ NAME ... ]
     The positional parameters ${N+1} ... are renamed to $1 ..., where
     N is an arithmetic expression that defaults to 1.  If any NAMEs
     are given then the arrays with these names are shifted instead of
     the positional parameters.

source FILE [ ARG ... ]
     Same as ., except that the current directory is always searched and
     is always searched first, before directories in $path.

stat
     See *Note The zsh/stat Module::.

suspend [ -f ]
     Suspend the execution of the shell (send it a SIGTSTP) until it
     receives a SIGCONT.  Unless the -f option is given, this will
     refuse to suspend a login shell.

test [ ARG ... ]
[ [ ARG ... ] ]
     Like the system version of test.  Added for compatibility; use
     conditional expressions instead (see *Note Conditional
     Expressions::).

times
     Print the accumulated user and system times for the shell and for
     processes run from the shell.

trap [ ARG [ SIG ... ] ]
     ARG is a series of commands (usually quoted to protect it from
     immediate evaluation by the shell) to be read and executed when
     the shell receives SIG.  Each SIG can be given as a number or as
     the name of a signal.  If ARG is `-', then all traps SIG are reset
     to their default values.  If ARG is the empty string, then this
     signal is ignored by the shell and by the commands it invokes.

     If SIG is ZERR then ARG will be executed after each command with a
     nonzero exit status.  If SIG is DEBUG then ARG will be executed
     after each command.  If SIG is 0 or EXIT and the trap statement is
     executed inside the body of a function, then the command ARG is
     executed after the function completes.  If SIG is 0 or EXIT and
     the trap statement is not executed inside the body of a function,
     then the command ARG is executed when the shell terminates.

     The trap command with no arguments prints a list of commands
     associated with each signal.

     Note that traps defined with the trap builtin are slightly
     different from those defined as `TRAPNAL () { ... }', as the
     latter have their own function environment (line numbers, local
     variables, etc.) while the former use the environment of the
     command in which they were called.  For example,

          trap 'print $LINENO' DEBUG

     will print the line number of a command executed after it has run,
     while

          TRAPDEBUG() { print $LINENO; }

     will always print the number zero.

true [ ARG ... ]
     Do nothing and return an exit code of 0.

ttyctl -fu
     The -f option freezes the tty, and -u unfreezes it.  When the tty
     is frozen, no changes made to the tty settings by external
     programs will be honored by the shell, except for changes in the
     size of the screen; the shell will simply reset the settings to
     their previous values as soon as each command exits or is
     suspended.  Thus, stty and similar programs have no effect when
     the tty is frozen.  Without options it reports whether the
     terminal is frozen or not.

type [ -wfpams ] NAME ...
     Equivalent to whence -v.

typeset [ {+|-}AEFHLRUZafghilprtuxm [N]] [ NAME[=VALUE] ... ]
typeset -T [ {+|-}LRUZrux ] SCALAR[=VALUE] ARRAY
     Set or display attributes and values for shell parameters.

     A parameter is created for each NAME that does not already refer
     to one.  When inside a function, a new parameter is created for
     every NAME (even those that already exist), and is unset again
     when the function completes.  See *Note Local Parameters::.  The
     same rules apply to special shell parameters, which retain their
     special attributes when made local.

     For each NAME=VALUE assignment, the parameter NAME is set to
     VALUE.  Note that arrays currently cannot be assigned in typeset
     expressions, only scalars and integers.

     If the shell option TYPESET_SILENT is not set, for each remaining
     NAME that refers to a parameter that is set, the name and value of
     the parameter are printed in the form of an assignment.  Nothing
     is printed for newly-created parameters, or when any attribute
     flags listed below are given along with the NAME.  Using `+'
     instead of minus to introduce an attribute turns it off.

     If the -p option is given, parameters and values are printed in the
     form of a typeset comand and an assignment (which will be printed
     separately for arrays and associative arrays), regardless of other
     flags and options.  Note that the -h flag on parameters is
     respected; no value will be shown for these parameters.

     If the -T option is given, exactly two (or zero) NAME arguments
     must be present.  They represent a scalar and an array (in that
     order) that will be tied together in the manner of $PATH and
     $path.  In other words, an array present in the latter variable
     appears as a scalar with the elements of the array joined by
     colons in the former.  Only the scalar may have an initial value.
     Both the scalar and the array may otherwise be manipulated as
     normal.  If one is unset, the other will automatically be unset
     too.  There is no way of untying the variables without unsetting
     them, or converting the type of one of them with another typeset
     command; +T does not work, assigning an array to SCALAR is an
     error, and assigning a scalar to ARRAY sets it to be a
     single-element array.  Note that both `typeset -xT ...' and
     `export -T ...' work, but only the scalar will be marked for
     export.

     The -g (global) flag is treated specially: it means that any
     resulting parameter will not be restricted to local scope.  Note
     that this does not necessarily mean that the parameter will be
     global, as the flag will apply to any existing parameter (even if
     unset) from an enclosing function.  This flag does not affect the
     parameter after creation, hence it has no effect when listing
     existing parameters, nor does the flag +g have any effect except
     in combination with -m (see below).

     If no NAME is present, the names and values of all parameters are
     printed.  In this case the attribute flags restrict the display to
     only those parameters that have the specified attributes, and
     using `+' rather than `-' to introduce the flag suppresses
     printing of the values of parameters when there is no parameter
     name.  Also, if the last option is the word `+', then names are
     printed but values are not.

     If the -m flag is given the NAME arguments are taken as patterns
     (which should be quoted).  With no attribute flags, all parameters
     (or functions with the -f flag) with matching names are printed
     (the shell option TYPESET_SILENT is not used in this case).  Note
     that -m is ignored if no patterns are given.  If the +g flag is
     combined with -m, a new local parameter is created for every
     matching parameter that is not already local.  Otherwise -m
     applies all other flags or assignments to the existing parameters.
     Except when assignments are made with NAME=VALUE, using +m forces
     the matching parameters to be printed, even inside a function.

     If no attribute flags are given and either no -m flag is present or
     the +m form was used, each parameter name printed is preceded by a
     list of the attributes of that parameter (array, association,
     exported, integer, readonly).  If +m is used with attribute flags,
     and all those flags are introduced with +, the matching parameter
     names are printed but their values are not.

     The following attribute flags may be specified:

    -A
          The names refer to associative array parameters; see *Note
          Array Parameters::.

    -L
          Left justify and remove leading blanks from VALUE.  If N is
          nonzero, it defines the width of the field; otherwise it is
          determined by the width of the value of the first assignment.
          When the parameter is expanded, it is filled on the right with
          blanks or truncated if necessary to fit the field.  Leading
          zeros are removed if the -Z flag is also set.

    -R
          Right justify and fill with leading blanks.  If N is nonzero
          if defines the width of the field; otherwise it is determined
          by the width of the value of the first assignment.  When the
          parameter is expanded, the field is left filled with blanks
          or truncated from the end.

    -U
          For arrays (but not for associative arrays), keep only the
          first occurrence of each duplicated value.  This may also be
          set for colon-separated special parameters like PATH or
          FIGNORE, etc.  This flag has a different meaning when used
          with -f; see below.

    -Z
          Right justify and fill with leading zeros if the first
          non-blank character is a digit and the -L flag has not been
          set.  If N is nonzero it defines the width of the field;
          otherwise it is determined by the width of the value of the
          first assignment.

    -a
          The names refer to array parameters.  An array parameter may
          be created this way, but it may not be assigned to in the
          typeset statement.  When displaying, both normal and
          associative arrays are shown.

    -f
          The names refer to functions rather than parameters.  No
          assignments can be made, and the only other valid flags are
          -t, -u and -U.  The flag -t turns on execution tracing for
          this function.  The -u and -U flags cause the function to be
          marked for autoloading; -U also causes alias expansion to be
          suppressed when the function is loaded.  The fpath parameter
          will be searched to find the function definition when the
          function is first referenced; see *Note Functions::.

    -h
          Hide: only useful for special parameters (those marked `<S>'
          in the table in *Note Parameters Set By The Shell::), and for
          local parameters with the same name as a special parameter,
          though harmless for others.  A special parameter with this
          attribute will not retain its special effect when made local.
          Thus after `typeset -h PATH', a function containing `typeset
          PATH' will create an ordinary local parameter without the
          usual behaviour of PATH.  Alternatively, the local parameter
          may itself be given this attribute; hence inside a function
          `typeset -h PATH' creates an ordinary local parameter and the
          special PATH parameter is not altered in any way.  It is also
          possible to create a local parameter using `typeset +h
          SPECIAL', where the local copy of SPECIAL will retain its
          special properties regardless of having the -h attribute.
          Global special parameters loaded from shell modules
          (currently those in zsh/mapfile and zsh/parameter) are
          automatically given the -h attribute to avoid name clashes.

    -H
          Hide value: specifies that typeset will not display the value
          of the parameter when listing parameters; the display for
          such parameters is always as if the `+' flag had been given.
          Use of the parameter is in other respects normal, and the
          option does not apply if the parameter is specified by name,
          or by pattern with the -m option.  This is on by default for
          the parameters in the zsh/parameter and zsh/mapfile modules.
          Note, however, that unlike the -h flag this is also useful
          for non-special parameters.

    -i
          Use an internal integer representation.  If N is nonzero it
          defines the output arithmetic base, otherwise it is
          determined by the first assignment.

    -E
          Use an internal double-precision floating point
          representation.  On output the variable will be converted to
          scientific notation.  If N is nonzero it defines the number
          of significant figures to display; the default is ten.

    -F
          Use an internal double-precision floating point
          representation.  On output the variable will be converted to
          fixed-point decimal notation.  If N is nonzero it defines the
          number of digits to display after the decimal point; the
          default is ten.

    -l
          Convert the result to lower case whenever the parameter is
          expanded.  The value is _not_ converted when assigned.

    -r
          The given NAMEs are marked readonly.  Note that if NAME is a
          special parameter, the readonly attribute can be turned on,
          but cannot then be turned off.

    -t
          Tags the named parameters.  Tags have no special meaning to
          the shell.  This flag has a different meaning when used with
          -f; see above.

    -u
          Convert the result to upper case whenever the parameter is
          expanded.  The value is _not_ converted when assigned.  This
          flag has a different meaning when used with -f; see above.

    -x
          Mark for automatic export to the environment of subsequently
          executed commands.  If the option GLOBAL_EXPORT is set, this
          implies the option -g, unless +g is also explicitly given; in
          other words the parameter is not made local to the enclosing
          function.  This is for compatibility with previous versions
          of zsh.

ulimit [ -SHacdflmnpstv [ LIMIT ] ... ]
     Set or display resource limits of the shell and the processes
     started by the shell.  The value of LIMIT can be a number in the
     unit specified below or the value `unlimited'.  By default, only
     soft limits are manipulated. If the -H flag is given use hard
     limits instead of soft limits.  If the -S flag is given together
     with the -H flag set both hard and soft limits.  If no options are
     used, the file size limit (-f) is assumed.  If LIMIT is omitted
     the current value of the specified resources are printed.  When
     more than one resource values are printed the limit name and unit
     is printed before each value.

    -a
          Lists all of the current resource limits.

    -c
          512-byte blocks on the size of core dumps.

    -d
          K-bytes on the size of the data segment.

    -f
          512-byte blocks on the size of files written.

    -l
          K-bytes on the size of locked-in memory.

    -m
          K-bytes on the size of physical memory.

    -n
          open file descriptors.

    -s
          K-bytes on the size of the stack.

    -t
          CPU seconds to be used.

    -u
          processes available to the user.

    -v
          K-bytes on the size of virtual memory.  On some systems this
          refers to the limit called `address space'.

umask [ -S ] [ MASK ]
     The umask is set to MASK.  MASK can be either an octal number or a
     symbolic value as described in man page chmod(1).  If MASK is
     omitted, the current value is printed.  The -S option causes the
     mask to be printed as a symbolic value.  Otherwise, the mask is
     printed as an octal number.  Note that in the symbolic form the
     permissions you specify are those which are to be allowed (not
     denied) to the users specified.

unalias
     Same as unhash -a.

unfunction
     Same as unhash -f.

unhash [ -adfm ] NAME ...
     Remove the element named NAME from an internal hash table.  The
     default is remove elements from the command hash table.  The -a
     option causes unhash to remove aliases.  The -f option causes
     unhash to remove shell functions.  The -d options causes unhash to
     remove named directories.  If the -m flag is given the arguments
     are taken as patterns (should be quoted) and all elements of the
     corresponding hash table with matching names will be removed.

unlimit [ -hs ] RESOURCE ...
     The resource limit for each RESOURCE is set to the hard limit.  If
     the -h flag is given and the shell has appropriate privileges, the
     hard resource limit for each RESOURCE is removed.  The resources
     of the shell process are only changed if the -s flag is given.

unset [ -fmv ] NAME ...
     Each named parameter is unset.  Local parameters remain local even
     if unset; they appear unset within scope, but the previous value
     will still reappear when the scope ends.

     Individual elements of associative array parameters may be unset
     by using subscript syntax on NAME, which should be quoted (or the
     entire command prefixed with noglob) to protect the subscript from
     filename generation.

     If the -m flag is specified the arguments are taken as patterns
     (should be quoted) and all parameters with matching names are
     unset.  Note that this cannot be used when unsetting associative
     array elements, as the subscript will be treated as part of the
     pattern.

     The -v flag specifies that NAME refers to parameters. This is the
     default behaviour.

     unset -f is equivalent to unfunction.

unsetopt [ {+|-}OPTIONS | {+|-}o OPTION_NAME ] [ NAME ... ]
     Unset the options for the shell.  All options specified either
     with flags or by name are unset.  If no arguments are supplied,
     the names of all options currently unset are printed.  If the -m
     flag is given the arguments are taken as patterns (which should be
     quoted to preserve them from being interpreted as glob patterns),
     and all options with names matching these patterns are unset.

vared
     See *Note Zle Builtins::.

wait [ JOB ... ]
     Wait for the specified jobs or processes.  If JOB is not given
     then all currently active child processes are waited for.  Each
     JOB can be either a job specification or the process ID of a job
     in the job table.  The exit status from this command is that of
     the job waited for.

whence [ -vcwfpams ] NAME ...
     For each name, indicate how it would be interpreted if used as a
     command name.

    -v
          Produce a more verbose report.

    -c
          Print the results in a `csh'-like format.  This takes
          precedence over -v.

    -w
          For each NAME, print `NAME: WORD' where WORD is one of alias,
          builtin, command, function, hashed, reserved or none,
          according as NAME corresponds to an alias, a built-in
          command, an external command, a shell function, a command
          defined with the hash builtin, a reserved word, or is not
          recognised.  This takes precedence over -v and -c.

    -f
          Causes the contents of a shell function to be displayed,
          which would otherwise not happen unless the -c flag were used.

    -p
          Do a path search for NAME even if it is an alias, reserved
          word, shell function or builtin.

    -a
          Do a search for all occurrences of NAME throughout the
          command path.  Normally only the first occurrence is printed.

    -m
          The arguments are taken as patterns (should be quoted), and
          the information is displayed for each command matching one of
          these patterns.

    -s
          If a pathname contains symlinks, print the symlink-free
          pathname as well.

where [ -wpms ] NAME ...
     Equivalent to whence -ca.

which [ -wpams ] NAME ...
     Equivalent to whence -c.

zcompile [ -U ] [ -z | -k ] [ -R | -M ] FILE [ NAME ... ]
zcompile -ca [ -m ] [ -R | -M ] FILE [ NAME ... ]
zcompile -t FILE [ NAME ... ]
     This builtin command can be used to compile functions or scripts,
     storing the compiled form in a file, and to examine files
     containing the compiled form.  This allows faster autoloading of
     functions and execution of scripts by avoiding parsing of the text
     when the files are read.

     The first form (without the -c, -a or -t options) creates a
     compiled file.  If only the FILE argument is given, the output
     file has the name `FILE.zwc' and will be placed in the same
     directory as the FILE.  The shell will load the compiled file
     instead of the normal function file when the function is
     autoloaded; see *Note Functions:: for a description of how
     autoloaded functions are searched.  The extension .zwc stands for
     `zsh word code'.

     If there is at least one NAME argument, all the named files are
     compiled into the output FILE given as the first argument.  If
     FILE does not end in .zwc, this extension is automatically
     appended.  Files containing multiple compiled functions are called
     `digest' files, and are intended to be used as elements of the
     FPATH/fpath special array.

     The second form, with the -c or -a options, writes the compiled
     definitions for all the named functions into FILE.  For -c, the
     names must be functions currently defined in the shell, not those
     marked for autoloading.  Undefined functions that are marked for
     autoloading may be written by using the -a option, in which case
     the fpath is searched and the contents of the definition files for
     those functions, if found, are compiled into FILE.  If both -c and
     -a are given, names of both defined functions and functions marked
     for autoloading may be given.  In either case, the functions in
     files written with the -c or -a option will be autoloaded as if the
     KSH_AUTOLOAD option were unset.

     The reason for handling loaded and not-yet-loaded functions with
     different options is that some definition files for autoloading
     define multiple functions, including the function with the same
     name as the file, and, at the end, call that function.  In such
     cases the output of `zcompile -c' does not include the additional
     functions defined in the file, and any other initialization code
     in the file is lost.  Using `zcompile -a' captures all this extra
     information.

     If the -m option is combined with -c or -a, the NAMEs are used as
     patterns and all functions whose names match one of these patterns
     will be written. If no NAME is given, the definitions of all
     functions currently defined or marked as autoloaded will be
     written.

     The third form, with the -t option, examines an existing compiled
     file.  Without further arguments, the names of the original files
     compiled into it are listed.  The first line of output shows the
     version of the shell which compiled the file and how the file will
     be used (i.e. by reading it directly or by mapping it into memory).
     With arguments, nothing is output and the return value is set to
     zero if definitions for _all_ NAMEs were found in the compiled
     file, and non-zero if the definition for at least one NAME was not
     found.

     Other options:

    -U
          Aliases are not expanded when compiling the NAMEd files.

    -R
          When the compiled file is read, its contents are copied into
          the shell's memory, rather than memory-mapped (see -M).  This
          happens automatically on systems that do not support memory
          mapping.

          When compiling scripts instead of autoloadable functions, it
          is often desirable to use this option; otherwise the whole
          file, including the code to define functions which have
          already been defined, will remain mapped, consequently
          wasting memory.

    -M
          The compiled file is mapped into the shell's memory when
          read. This is done in such a way that multiple instances of
          the shell running on the same host will share this mapped
          file.  If neither -R nor -M is given, the zcompile builtin
          decides what to do based on the size of the compiled file.

    -k
    -z
          These options are used when the compiled file contains
          functions which are to be autoloaded. If -z is given, the
          function will be autoloaded as if the KSH_AUTOLOAD option is
          _not_ set, even if it is set at the time the compiled file is
          read, while if the -k is given, the function will be loaded
          as if KSH_AUTOLOAD _is_ set.  If neither of these options is
          given, the function will be loaded as determined by the
          setting of the KSH_AUTOLOAD option at the time the compiled
          file is read.

          These options may also appear as many times as necessary
          between the listed NAMEs to specify the loading style of all
          following functions, up to the next -k or -z.

     The created file always contains two versions of the compiled
     format, one for big-endian machines and one for small-endian
     machines.  The upshot of this is that the compiled file is machine
     independent and if it is read or mapped, only one half of the file
     is actually used (and mapped).

zformat
     See *Note The zsh/zutil Module::.

zftp
     See *Note The zsh/zftp Module::.

zle
     See *Note Zle Builtins::.

zmodload [ -dL ] [ ... ]
zmodload -e [ -A ] [ ... ]
zmodload [ -a [ -bcpf [ -I ] ] ] [ -iL ] ...
zmodload -u [ -abcdpf [ -I ] ] [ -iL ] ...
zmodload -A [ -L ] [ MODALIAS[=MODULE] ... ]
zmodload -R MODALIAS ...
     Performs operations relating to zsh's loadable modules.  Loading
     of modules while the shell is running (`dynamical loading') is not
     available on all operating systems, or on all installations on a
     particular operating system, although the zmodload command itself
     is always available and can be used to manipulate modules built
     into versions of the shell executable without dynamical loading.

     Without arguments the names of all currently loaded binary modules
     are printed.  The -L option causes this list to be in the form of a
     series of zmodload commands.  Forms with arguments are:

    zmodload [ -i ] NAME ...
    zmodload -u [ -i ] NAME ...
          In the simplest case, zmodload loads a binary module.  The
          module must be in a file with a name consisting of the
          specified NAME followed by a standard suffix, usually `.so'
          (`.sl' on HPUX).  If the module to be loaded is already
          loaded and the -i option is given, the duplicate module is
          ignored.  Otherwise zmodload prints an error message.

          The NAMEd module is searched for in the same way a command
          is, using $module_path instead of $path.  However, the path
          search is performed even when the module name contains a `/',
          which it usually does.  There is no way to prevent the path
          search.

          With -u, zmodload unloads modules.  The same NAME must be
          given that was given when the module was loaded, but it is not
          necessary for the module to exist in the filesystem.  The -i
          option suppresses the error if the module is already unloaded
          (or was never loaded).

          Each module has a boot and a cleanup function.  The module
          will not be loaded if its boot function fails.  Similarly a
          module can only be unloaded if its cleanup function runs
          successfully.

    zmodload -d [ -L ] [ NAME ]
    zmodload -d NAME DEP ...
    zmodload -ud NAME [ DEP ... ]
          The -d option can be used to specify module dependencies.
          The modules named in the second and subsequent arguments will
          be loaded before the module named in the first argument.

          With -d and one argument, all dependencies for that module
          are listed.  With -d and no arguments, all module
          dependencies are listed.  This listing is by default in a
          Makefile-like format.  The -L option changes this format to a
          list of zmodload -d commands.

          If -d and -u are both used, dependencies are removed.  If
          only one argument is given, all dependencies for that module
          are removed.

    zmodload -ab [ -L ]
    zmodload -ab [ -i ] NAME [ BUILTIN ... ]
    zmodload -ub [ -i ] BUILTIN ...
          The -ab option defines autoloaded builtins.  It defines the
          specified BUILTINs.  When any of those builtins is called,
          the module specified in the first argument is loaded.  If
          only the NAME is given, one builtin is defined, with the same
          name as the module.  -i suppresses the error if the builtin
          is already defined or autoloaded, regardless of which module
          it came from.

          With -ab and no arguments, all autoloaded builtins are
          listed, with the module name (if different) shown in
          parentheses after the builtin name.  The -L option changes
          this format to a list of zmodload -a commands.

          If -b is used together with the -u option, it removes builtins
          previously defined with -ab.  This is only possible if the
          builtin is not yet loaded.  -i suppresses the error if the
          builtin is already removed (or never existed).

    zmodload -ac [ -IL ]
    zmodload -ac [ -iI ] NAME [ COND ... ]
    zmodload -uc [ -iI ] COND ...
          The -ac option is used to define autoloaded condition codes.
          The COND strings give the names of the conditions defined by
          the module. The optional -I option is used to define infix
          condition names. Without this option prefix condition names
          are defined.

          If given no condition names, all defined names are listed (as
          a series of zmodload commands if the -L option is given).

          The -uc option removes definitions for autoloaded conditions.

    zmodload -ap [ -L ]
    zmodload -ap [ -i ] NAME [ PARAMETER ... ]
    zmodload -up [ -i ] PARAMETER ...
          The -p option is like the -b and -c options, but makes
          zmodload work on autoloaded parameters instead.

    zmodload -af [ -L ]
    zmodload -af [ -i ] NAME [ FUNCTION ... ]
    zmodload -uf [ -i ] FUNCTION ...
          The -f option is like the -b, -p, and -c options, but makes
          zmodload work on autoloaded math functions instead.

    zmodload -a [ -L ]
    zmodload -a [ -i ] NAME [ BUILTIN ... ]
    zmodload -ua [ -i ] BUILTIN ...
          Equivalent to -ab and -ub.

    zmodload -e [ -A ] [ STRING ... ]
          The -e option without arguments lists all loaded modules; if
          the -A option is also given, module aliases corresponding to
          loaded modules are also shown.  With arguments only the
          return status is set to zero if all STRINGs given as
          arguments are names of loaded modules and to one if at least
          on STRING is not the name of a loaded module.  This can be
          used to test for the availability of things implemented by
          modules.  In this case, any aliases are automatically
          resolved and the -A flag is not used.

    zmodload -A [ -L ] [ MODALIAS[=MODULE] ... ]
          For each argument, if both MODALIAS and MODULE are given,
          define MODALIAS to be an alias for the module MODULE.  If the
          module MODALIAS is ever subsequently requested, either via a
          call to zmodload or implicitly, the shell will attempt to load
          MODULE instead.  If MODULE is not given, show the definition
          of MODALIAS.  If no arguments are given, list all defined
          module aliases.  When listing, if the -L flag was also given,
          list the definition as a zmodload command to recreate the
          alias.

          The existence of aliases for modules is completely
          independent of whether the name resolved is actually loaded
          as a module: while the alias exists, loading and unloading
          the module under any alias has exactly the same effect as
          using the resolved name, and does not affect the connection
          between the alias and the resolved name which can be removed
          either by zmodload -R or by redefining the alias.  Chains of
          aliases (i.e. where the first resolved name is itself an
          alias) are valid so long as these are not circular.  As the
          aliases take the same format as module names, they may
          include path separators:  in this case, there is no
          requirement for any part of the path named to exist as the
          alias will be resolved first.  For example, `any/old/alias'
          is always a valid alias.

          Dependencies added to aliased modules are actually added to
          the resolved module; these remain if the alias is removed.
          It is valid to create an alias whose name is one of the
          standard shell modules and which resolves to a different
          module.  However, if a module has dependencies, it will not
          be possible to use the module name as an alias as the module
          will already be marked as a loadable module in its own right.

          Apart from the above, aliases can be used in the zmodload
          command anywhere module names are required.  However, aliases
          will not be shown in lists of loaded modules with a bare
          `zmodload'.

    zmodload -R MODALIAS ...
          For each MODALIAS argument that was previously defined as a
          module alias via zmodload -A, delete the alias.  If any was
          not defined, an error is caused and the remainder of the line
          is ignored.

     Note that zsh makes no distinction between modules that were linked
     into the shell and modules that are loaded dynamically. In both
     cases this builtin command has to be used to make available the
     builtins and other things defined by modules (unless the module is
     autoloaded on these definitions). This is true even for systems
     that don't support dynamic loading of modules.

zparseopts
     See *Note The zsh/zutil Module::.

zprof
     See *Note The zsh/zprof Module::.

zpty
     See *Note The zsh/zpty Module::.

zregexparse
     See *Note The zsh/zutil Module::.

zsocket
     See *Note The zsh/net/socket Module::.

zstyle
     See *Note The zsh/zutil Module::.

ztcp
     See *Note The zsh/net/tcp Module::.

