unshar


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  ar-
              chives  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.

              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.

REPORTING BUGS
       Report bugs to <bug-gnu-utils@gnu.org>.  Please put  sharutils  in  the
       subject line.  It helps to spot the message.



                              September 10, 1995                     UNSHAR(1)
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