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- UNSHAR(1) UNIX Programmer's Manual UNSHAR(1)
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- NAME
- unshar - unpack shell archives from news, mail, notes, etc.
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- SYNOPSIS
- unshar [ -cdirectory ] [ -ddirectory ] [ -f ] [ -n ] [ -s ]
- [files]
-
- DESCRIPTION
- Unshar removes mail and news header lines from its input,
- and feeds the remainder to /bin/sh(1) so that a shell
- archive can be properly unpacked. If no files are speci-
- fied, unshar reads from standard input. The program is
- designed to be useful when unpacking archives directly from
- the news or mail systems (e.g., s | unshar).
-
- Unshar normally unpacks its files in the current directory.
- Use the ``-c'' option to have the program change to a new
- directory before invoking the shell. If the directory does
- not exist, it will try to create it. If the directory name
- starts with a question mark, then unshar will ask for the
- directory name before doing anything; this is most useful
- with the environment variable UNSHAREDIR. If the directory
- name starts with a tilde, then the value of the HOME
- environment variable is inserted in place of that character.
- For convenience, the ``-d'' option is a synonym for the
- ``-c'' option.
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- Unshar normally complains if the input looks like something
- other than a shar file. (Among other things, it checks for
- files that resemble C, and Pascal code). It can be fooled,
- however, by nonstandard versions of news, notes, etc. The
- ``-f'' option forces unshar to try unpacking files, even if
- they look like something else.
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- Depending on how the program is installed, unshar may or may
- not try to preserve the header part of file ``foo'' into the
- name ``foo.hdr'' (if the file is standard input, the name
- will be ``UNSHAR.HDR''). Using the Using the ``-s'' option
- forces the program to save the headers, while using the
- ``-n'' option forces it to discard the headers. The file is
- appended to, if it already exists, so all headers can be
- easily saved in one file.
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- ENVIRONMENT
- HOME Value used if a leading tilde is given in direc-
- tory name.
- UNSHAREDIR Default value for ``-c'' option.
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- SEE ALSO
- shar(1).
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- Printed 2/21/88 LOCAL 1
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