sccs-get(1)

NAME
sccs-get, get - retrieve a version of an SCCS file

SYNOPSIS

/usr/ccs/bin/get [-beFgkmnopst] [-l [p]] [-a sequence]
[-c date-time | -cdate-time ] [-G g-file] [-w %W%-string]
[-i sid-list | -isid-list ] [-q [nsedelim]] [-r [sid]]
[-x sid-list | -xsid-list ] [-z [cmr]]
[-N bulk-spec] s.filename...

/usr/xpg4/bin/get
[-beFgkmnopst]
[-l
[p]]
[-a
sequence]
    [-c
date-time
|
-cdate-time
]
[-G
g-file]
[-w
%W%-string]
    [-i
sid-list
|
-isid-list
]
[-q
[nsedelim]]
[-r
sid
|
-rsid
]
    [-x
sid-list
|
-xsid-list
]
[-z
[cmr]]
    [-N
bulk-spec]
s.filename...

DESCRIPTION

The get utility retrieves a working copy from the SCCS history file, according to the specified options.

For each s.filename argument, get displays the SCCS delta ID (SID) and number of lines retrieved.

If a directory name is used in place of the s.filename argument, the get command applies to all s.files in that directory. Unreadable s.files produce an error; processing continues with the next file (if any). The use of `-' as the s.filename argument indicates that the names of files are to be read from the standard input, one s.file per line.

The retrieved file normally has the same filename base as the s.file, less the prefix, and is referred to as the g-file.

For each file processed, get responds (on the standard output) with the SID being accessed, and with the number of lines retrieved from the s.file.

OPTIONS

The following options are supported:

-A  Annotates the output. Precedes each line with the programmer who last changed that line and the related date. This option may be combined with the options -m and -n. When combined with other annotate options, the text related to -A is inserted last. Future versions of get(1) may add support for a parameter to this option that implements some of the prs -d data specs.

    This option is a SCHILY extension that does not exist in historic sccs implementations.

-asequence
    Retrieves the version corresponding to the indicated delta sequence number. This option is used primarily by the SCCS comb command (see sccs-comb(1)). For users, -r is an easier way to specify a version. The -a option supersedes the -r option when both are used.

-b  Creates a new branch. Used with the -e option to indicate that the new delta should have a SID in a new branch. Instead of incrementing the level for version to be checked in, get indicates in the p.file that the delta to be checked in should either initialize a new branch and sequence (if there is no existing branch at the current level), or increment the branch component of the SID. If the b flag is not set in the s.file, this option is ignored.

-c date-time

-cdate-time
    Retrieves the latest version checked in prior to the date and time indicated by the date-time argument. date-time takes the form:

     yy[mm[dd[ hh[mm[ss]]]]]

    Units omitted from the indicated date and time default to their maximum possible values; that is -c7502 is equivalent to -c750228235959. Values of yy in the range 69-99 refer to the twentieth century. Values in the range 00-68 refer to the twenty-first century. Any number of non-numeric characters may separate the various 2 digit components. If white-space characters occur, the date-time specification must be quoted.

    A date-time specification in the form:

     yyyy/[mm[dd[hh[mm[ss]]]]]

    refers to a 4-digit year and allows to specify a year outside the range 1969-2068.

-e  Retrieves a version for editing. With this option, get places a lock on the s.file, so that no one else can check in changes to the version you have checked out. If the j flag is set in the s.file, the lock is advisory: get issues a warning message. Concurrent use of `get -e' for different SIDs is allowed. However, get will not check out a version of the file if a writable version is present in the directory. All SCCS file protections stored in the s.file, including the release ceiling, floor, and authorized user list, are honored by `get -e'.

-F  Enforce to retrieve the g.file even if a SID specific checksum missmatch has been detected.

-g  Gets the SCCS version ID, without retrieving the version itself. Used to verify the existence of a particular SID.

-Gnewname
    Uses newname as the name of the retrieved version.

-i sid-list

-isid-list
    Specifies a list of deltas to include in the retrieved version. The included deltas are noted in the standard output message. sid-list is a comma-separated list of SIDs. To specify a range of deltas, use a `-' separator instead of a comma, between two SIDs in the list.

-k  Suppresses expansion of ID keywords. -k is implied by the -e.

-l[p]
    Retrieves a summary of the delta table (version log) and write it to a listing file, with the `l.' prefix (called `l.file'). When -lp is used, write the summary onto the standard output.

-L  Treated as if -lp was given.

-m  Precedes each retrieved line with the SID of the delta in which it was added to the file. The SID is separated from the line with a TAB.

-Nbulk-spec
    Processes a bulk of SCCS history files. This option allows to do an efficient mass processing of SCCS history files.

    The bulk-spec parameter is composed from an optional list of flag parameters followed by an optional path specifier.

    The following flag types are supported:

    ++  If bulk-spec is preceded by a `++', get(1) expects to process filenames that are prepended by a plus sign, the related SID and another plus sign following the form:

        +sid+ filename

        This permits each file to be retrieved with an individual SID.

    The following path specifier types are supported:

    -N  The file name parameters to the get command are not s.filename files but the names of the g-files. The s.filename names are automatically derived from the g-file names by prepending s. to the last path name component.

    -Ns.
        The file name parameters to the get command are s.filename files. The the g-files names are automatically derived by removing s. from the beginning of last path name component of the s.filename.

    -Ndir
        The file name parameters to the get command are not s.filename files but the names of the g-files. The s.filename names are put into directory dir, the names are automatically derived from the g-file names by prepending dir/s. to the last path name component.

    -Ndir/s.
        The file name parameters to the get command are s.filename files in directory dir. The the g-files names are automatically derived by removing dir/s. from the beginning of last path name component of the s.filename.

    A typical value for dir is SCCS.

    In order to overcome the limited number of exec(2) arguments, it is recommended to use `-' as the file name parameter for get(1) and to send a list of path names to stdin.

    This option is a SCHILY extension that does not exist in historic sccs implementations.

-n  Precedes each line with the %M% ID keyword and a TAB. When both the -m and -n options are used, the ID keyword precedes the SID, and the line of text.

-o  Retrieves the file under the original time of the requested version.

    Use this option with care, as it may be in conflict with make(1) rules. Using `get -o' thus may cause make to perform an automatic retrival of the latest version as the s.file is newer than the gotten file, or cause make to skip the compilation as the compilation result is already newer than the gotten file.

    This option is a SCHILY extension that does not exist in historic sccs implementations.

-p  Writes the text of the retrieved version to the standard output. All messages that normally go to the standard output are written to the standard error instead.

-q[nsedelim]
    Enable NSE mode. If NSE mode is enabled, several NSE related extensions may be used. In this release, the value of nsedelim is ignored.

    In NSE mode, get never issues a warning about missing id keywords.

    This option is an undocumented SUN extension that does not exist in historic sccs implementations.

-s  Suppresses all output normally written on the standard output. However, fatal error messages (which always go to the standard error) remain unaffected.

-t  Retrieves the most recently created (top) delta in a given release (for example: -r1).

-w%W%-string
    The %W%-string is used as a replacement for the %W% keyword. If -w was not specified, %W% is expanded to %Z%%M% %I%, otherwise the argument from -w is used.

    This option is an undocumented SUN extension that does not exist in historic sccs implementations.

-z[cmr]
    Append MR number to CMR list for CMF extensions.

    This option is an undocumented SUN extension that does not exist in historic sccs implementations.

-Cdir
    Specify the base directory for the g-file relative to the current working directory. By default, the g-file is created in the current directory (independent from the location of the s.file.

-V  Prints the get version number string and exists.

  /usr/ccs/bin/get

-d  Do not print the number of gotten lines.

    This option is an undocumented SUN extension that does not exist in historic sccs implementations.

-r[sid]
    Retrieves the version corresponding to the indicated SID (delta).

    The SID for a given delta is a number, in Dewey decimal format, composed of two or four fields: the release and level fields, and for branch deltas, the branch and sequence fields. For instance, if 1.2 is the SID, 1 is the release, and 2 is the level number. If 1.2.3.4 is the SID, 3 is the branch and 4 is the sequence number.

    You need not specify the entire SID to retrieve a version with get. When you omit -r altogether, or when you omit both release and level, get normally retrieves the highest release and level. If the d flag is set to an SID in the s.file and you omit the SID, get retrieves the default version indicated by that flag.

    When you specify a release but omit the level, get retrieves the highest level in that release. If that release does not exist, get retrieves highest level from the next-highest existing release.

    Similarly with branches, if you specify a release, level and branch, get retrieves the highest sequence in that branch.

-x sid-list

-x[sid-list]
    Excludes the indicated deltas from the retrieved version. The excluded deltas are noted in the standard output message. sid-list is a comma-separated list of SIDs. To specify a range of deltas, use a `-' separator instead of a comma, between two SIDs in the list.

  /usr/xpg4/bin/get

-r sid

-rsid
    Same as for /usr/ccs/bin/get except that SID is mandatory.

-x sid-list

-xsid-list
    Same as for /usr/ccs/bin/get except that sid-list is mandatory.

OUTPUT

  /usr/ccs/bin/get

The output format for /usr/ccs/bin/get is as follows:

"%s\n%d lines\n", <SID>, <number of lines>

  /usr/xpg4/bin/get

The output format for /usr/xpg4/bin/get is as follows:

"%s\n%d\n", <SID>, <number of lines>

USAGE

Usage guidelines are as follows:

  ID Keywords

In the absence of -e or -k, get expands the following ID keywords by replacing them with the indicated values in the text of the retrieved source.

T}
%D%Current date: yy/mm/dd
%d%Current date: yyyy/mm/dd
%E%T{
Date newest applied delta was created: yy/mm/dd
T}
%e%T{
Date newest applied delta was created: yyyy/mm/dd
T}
%F%SCCS s.file name
%G%T{
Date newest applied delta was created: mm/dd/yy
T}
%g%T{
Date newest applied delta was created: mm/dd/yyyy
T}
%H%Current date: mm/dd/yy
%h%Current date: mm/dd/yyyy
%I%SID of the retrieved version: %R%.%L%.%B%.%S%
%L%SID level component
%M%T{
Module name: either the value of the m flag in the s.file (see
sccs-admin(1)), or the name of the s.file less the prefix
T}
%P%
%Q%Value of the q flag in the s.file
%R%SID Release component
%S%SID Sequence component
%T%Current time: hh:mm:ss
%U%T{
Time the newest applied delta was
created: hh:mm:ss
T}
%W%T{
Shorthand notation for an ID line with data
for what: %Z%%M% %I% or get -w argument
T}
%Y%T{
Module type: value of the t flag in the s.file
T}
%Z%T{
4-character string: `@(#)', recognized by what
T}

A line with a string in the form %sccs.include.filename% is replaced by the content of the file filename. The file is searched for in the path list found in the environment variable SCCS_INCLUDEPATH.

The keywords %d%, %e%, %g% and %h% are only expanded if either the `x' flag has been set by the admin(1) command or if the expansion for a specific keyword has been enabled via the `y' flag.

  ID String

The table below explains how the SCCS identification string is determined for retrieving and creating deltas.

(1) `R', `L', `B', and `S' are the `release', `level', `branch', and `sequence' components of the SID, respectively; `m' means `maximum'. Thus, for example, `R.mL' means `the maximum level number within release R'; `R.L.(mB+1).1' means `the first sequence number on the new branch (that is, maximum branch number plus one) of level L within release R'. Note: If the SID specified is of the form `R.L', `R.L.B', or `R.L.B.S', each of the specified components must exist.

(2) The -b option is effective only if the b flag is present in the file. An entry of `-' means `irrelevant'.

(3) This case applies if the d (default SID) flag is not present in the file. If the d flag is present in the file, the SID obtained from the d flag is interpreted as if it had been specified on the command line. Thus, one of the other cases in this table applies.

(4) Forces creation of the first delta in a new release.

(5) `hR' is the highest existing release that is lower than the specified, nonexistent, release R.

(6) Successor.

ENVIRONMENT VARIABLES

See environ(5) for descriptions of the following environment variables that affect the execution of get(1): LANG, LC_ALL, LC_COLLATE, LC_CTYPE, LC_MESSAGES, and NLSPATH.

SCCS_INCLUDEPATH
    A colon separated list of directories where to look for include files for a %sccs.include.filename% replacement.

SCCS_NO_HELP
    If set, get(1) will not automatically call help(1) with the SCCS error code in order to print a more helpful error message. Scripts that depend on the exact error messages of SCCS commands should set the environment variable SCCS_NO_HELP and set LC_ALL=C.

EXIT STATUS

The following exit values are returned:

0   Successful completion.

1   An error occurred.

FILES

``g-file''
    version retrieved by get

l.file
    file containing extracted delta table info

p.file
    permissions (lock) file for checked-out versions. The p.file has an arbitrary number of lines, each is related to a get -e call. Each line has the following structure:

    old-sid new-sid username date time \
    [ -ii-arg ][ -xx-arg ][ -zz-arg ]

    The old-sid is the SID that was checked out with get -e, the new-sid is the SID that will be used for the new version when delta is called. The username is the user-name corresponding to the real user ID at the time get -e was called. The date and time fields are in the same format as used in the delta table of the s.file as described in sccsfile(4) for SCCS v4. In order to grant POSIX compatibility, a two digit year is used between 1969 and 2068. For years outside that range, a four digit year is used. The following fields are only present when one or more of the -i -x or -z options have been specified on the command line, they refer to the list of included and excluded deltas or to the CMR list from the NSE enhancements.

q.file
    temporary copy of the p.file; renamed to the p.file after completion

s.file
    SCCS history file, see sccsfile(4).

z.file
    temporary lock file contains the binary process id in host byte order followed by the host name

dump.core
    If the file dump.core exists in the current directory and a fatal signal is received, a coredump is initiated via abort(3).

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

  /usr/ccs/bin/get

  /usr/xpg4/bin/get

SEE ALSO

sccs(1), sccs-admin(1), sccs-cdc(1), sccs-comb(1), sccs-cvt(1), sccs-delta(1), sccs-help(1), sccs-log(1), sccs-prs(1), sccs-prt(1), sccs-rmdel(1), sccs-sact(1), sccs-sccsdiff(1), sccs-unget(1), sccs-val(1), bdiff(1), diff(1), what(1), sccschangeset(4), sccsfile(4), attributes(5), environ(5), standards(5).

DIAGNOSTICS

Use the SCCS help command for explanations (see sccs-help(1)).

BUGS

If the effective user has write permission (either explicitly or implicitly) in the directory containing the SCCS files, but the real user does not, only one file may be named when using -e.

AUTHORS
The SCCS suite was origininally written by Marc J. Rochkind at Bell Labs in 1972. Release 4.0 of SCCS, introducing new versions of the programs admin(1), get(1), prt(1), and delta(1) was published on February 18, 1977; it introduced the new text based SCCS v4 history file format (previous SCCS releases used a binary history file format). The SCCS suite was later maintained by various people at AT&T and Sun Microsystems. Since 2006, the SCCS suite is maintained by Joerg Schilling.