Log::Log4perl::Appender::File - Log to file use Log::Log4perl::Appender::File; my $app = Log::Log4perl::Appender::File->new( filename => 'file.log', mode => 'append', autoflush => 1, umask => 0222, ); $file->log(message => "Log me\n"); This is a simple appender for writing to a file. The "log()" method takes a single scalar. If a newline character should terminate the message, it has to be added explicitely. Upon destruction of the object, the filehandle to access the file is flushed and closed. If you want to switch over to a different logfile, use the "file_switch($newfile)" method which will first close the old file handle and then open a one to the new file specified.

OPTIONS
Name of the log file. Messages will be append to the file if $mode is set to the string "append". Will clobber the file if set to "clobber". If it is "pipe", the file will be understood as executable to pipe output to. Default mode is "append". "autoflush", if set to a true value, triggers flushing the data out to the file on every call to "log()". "autoflush" is on by default. Specifies the "umask" to use when creating the file, determining the file's permission settings. If set to 0222 (default), new files will be created with "rw-r--r--" permissions. If set to 0000, new files will be created with "rw-rw-rw-" permissions. If you're printing out Unicode strings, the output filehandle needs to be set into ":utf8" mode: my $app = Log::Log4perl::Appender::File->new( filename => 'file.log', mode => 'append', utf8 => 1, ); To manipulate the output filehandle via "binmode()", use the binmode parameter: my $app = Log::Log4perl::Appender::File->new( filename => 'file.log', mode => 'append', binmode => ":utf8", ); A setting of ":utf8" for "binmode" is equivalent to specifying the "utf8" option (see above). Normally, if a file appender logs to a file and the file gets moved to a different location (e.g. via "mv"), the appender's open file handle will automatically follow the file to the new location. This may be undesirable. When using an external logfile rotator, for example, the appender should create a new file under the old name and start logging into it. If the "recreate" option is set to a true value, "Log::Log4perl::Appender::File" will do exactly that. It defaults to false. Check the "recreate_check_interval" option for performance optimizations with this feature. In "recreate" mode, the appender has to continuously check if the file it is logging to is still in the same location. This check is fairly expensive, since it has to call "stat" on the file name and figure out if its inode has changed. Doing this with every call to "log" can be prohibitively expensive. Setting it to a positive integer value N will only check the file every N seconds. It defaults to 30. This obviously means that the appender will continue writing to a moved file until the next check occurs, in the worst case this will happen "recreate_check_interval" seconds after the file has been moved or deleted. If this is undesirable, setting "recreate_check_interval" to 0 will have the appender appender check the file with every call to "log()". Design and implementation of this module has been greatly inspired by Dave Rolsky's "Log::Dispatch" appender framework. Mike Schilli <log4perl@perlmeister.com>, 2003, 2005