unshar(1)							   User Commands							 unshar(1)

NAME

       unshar - unpack a shar archive

SYNOPSIS

       unshar [-flag [value]]... [--opt-name[[=| ]value]]... [ file ... ]

DESCRIPTION

       Unshar  scans  the  input  files (typically email messages) looking for the start of a shell archive.  If no files are given, then standard
       input is processed instead.  It then passes each archive discovered through an invocation of the shell program to unpack it.

OPTIONS

       -d dir, --directory=dir
	      change directory to dir first.

	      Before unpacking any files, change the current directory to dir.

       -c, --overwrite
	      Overwrite any pre-existing files.

	      This option is passed through as an option to the shar file.  Many shell archive scripts accept  a  -c  argument	to  indicate  that
	      existing files should be overwritten.

       -f, --force
	      This is an alias for the --overwrite option.

       -E split-pat, --split-at=split-pat
	      separate archives on split-pat lines.

	      With  this  option,  unshar isolates each different shell archive from the others which have been placed in the same file, unpacking
	      each in turn, from the beginning of the file to the end.	Its proper operation relies on the fact that many shar	files  are  termi-
	      nated by a readily identifiable string.

	      For  example,  noticing  that most `.signatures' have a double hyphen ("--") on a line right before them, one can then sometimes use
	      --split-at=--.  The signature will then be skipped, along with the headers of the following message.

       -e, --exit-0
	      split archives at "exit 0" lines.  This option must not appear in combination with any of the following options: split-at.

	      Most shell archives end with a line consisting of simply "exit 0".  This option is  equivalent  to  (and	conflicts  with)  --split-
	      at="exit 0".

       -h, --help
	      Display usage information and exit.

       -!, --more-help
	      Pass the extended usage information through a pager.

       -R [rcfile], --save-opts[=rcfile]
	      Save the option state to rcfile.	The default is the last configuration file listed in the OPTION PRESETS section, below.

       -r rcfile, --load-opts=rcfile, --no-load-opts
	      Load options from rcfile.  The no-load-opts form will disable the loading of earlier RC/INI files.  --no-load-opts is handled early,
	      out of order.

       -v [{v|c|n}], --version[={v|c|n}]
	      Output version of program and exit.  The default mode is `v', a simple version.  The `c' mode will print copyright  information  and
	      `n' will print the full copyright notice.

OPTION PRESETS

       Any  option  that  is  not marked as not presettable may be preset by loading values from configuration ("RC" or ".INI") file(s).  The file
       "$HOME/.sharrc" will be used, if present.

FILES

       See OPTION PRESETS for configuration files.

EXIT STATUS

       One of the following exit values will be returned:

       0 (EXIT_SUCCESS)
	      Successful program execution.

       1 (EXIT_FAILURE)
	      The operation failed or the command syntax was not valid.

       66 (EX_NOINPUT)
	      A specified configuration file could not be loaded.

       70 (EX_SOFTWARE)
	      libopts had an internal operational error.  Please report it to autogen-users@lists.sourceforge.net.  Thank you.

SEE ALSO

       shar(1)

AUTHORS

       The shar and unshar programs is the collective work of many authors.  Many people contributed by  reporting  problems,  suggesting  various
       improvements or submitting actual code.	A list of these people is in the THANKS file in the sharutils distribution.

COPYRIGHT

       Copyright  (C)  1994-2013  Free Software Foundation, Inc. all rights reserved.  This program is released under the terms of the GNU General
       Public License, version 3 or later.

BUGS

       Please put sharutils in the subject line for emailed bug reports.  It helps to spot the message.

       Please send bug reports to: bug-gnu-utils@gnu.org

NOTES

       This manual page was AutoGen-erated from the unshar option definitions.

GNU sharutils (4.13.3)						    06 Jan 2013 							 unshar(1)