UNSHAR(1) UNIX System V (September 10, 1995) UNSHAR(1)
NAME
unshar - unpack a shar file
SYNOPSIS
unshar [ options ] [ file ... ]
DESCRIPTION
Unshar scans mail messages looking for the start of a shell
archive. It then passes the archive through a copy of the
shell to unpack it. It will accept multiple files. If no
files are given, standard input is used.
OPTIONS
Options have a one letter version starting with - or a long
version starting with --. The exception is --help and
--version, which does not have a short version.
--version
Print the version number of the program on standard
output, then immediately exits.
--help
Print a help summary on standard output, then
immediately exits.
-d DIRECTORY --directory=DIRECTORY
Change directory to DIRECTORY before unpacking any
files.
-c--overwrite
Passed as an option to the shar file. Many shell
archive scripts (including those produced by `shar'
3.40 and newer) accepts a -c argument to indicate that
existing files should be overwritten.
-e--exit-0
This option exists mainly for people who collect many
shell archives into a single mail folder. With this
option, `unshar' isolates each different shell archive
from the others which have been put in the same file,
unpacking each in turn, from the beginning of the file
towards its end. Its proper operation relies on the
fact that many shar files are terminated by a `exit 0'
at the beginning of a line.
Option -e is internally equivalent to -E "exit 0".
-E STRING --split-at=STRING
This option works like -e, but it allows you to specify
the string that separates archives if `exit 0' isn't
appropriate.
Page 1 (printed 4/6/00)
UNSHAR(1) UNIX System V (September 10, 1995) UNSHAR(1)
For example, noticing that most `.signatures' have a
`--' on a line right before them, one can sometimes use
`--split-at=--' for splitting shell archives which lack
the `exit 0' line at end. The signature will then be
skipped altogether with the headers of the following
message.
-f--force
The same as -c.
SEE ALSO
shar(1)
DIAGNOSTICS
Any message from the shell may be displayed.
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.
Page 2 (printed 4/6/00)
