gunzip.in

   1 #!/bin/sh
   2 # Uncompress files.  This is the inverse of gzip.
   3
   4 # Copyright (C) 2007, 2010-2024 Free Software Foundation, Inc.
   5
   6 # This program is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 version="gunzip (gzip) @VERSION@
  20 Copyright (C) 2024 Free Software Foundation, Inc.
  21 This is free software.  You may redistribute copies of it under the terms of
  22 the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
  23 There is NO WARRANTY, to the extent permitted by law.
  24
  25 Written by Paul Eggert."
  26
  27 usage="Usage: $0 [OPTION]... [FILE]...
  28 Uncompress FILEs (by default, in-place).
  29
  30 Mandatory arguments to long options are mandatory for short options too.
  31
  32   -c, --stdout      write on standard output, keep original files unchanged
  33   -f, --force       force overwrite of output file and compress links
  34   -k, --keep        keep (don't delete) input files
  35   -l, --list        list compressed file contents
  36   -n, --no-name     do not save or restore the original name and timestamp
  37   -N, --name        save or restore the original name and timestamp
  38   -q, --quiet       suppress all warnings
  39   -r, --recursive   operate recursively on directories
  40   -S, --suffix=SUF  use suffix SUF on compressed files
  41       --synchronous synchronous output (safer if system crashes, but slower)
  42   -t, --test        test compressed file integrity
  43   -v, --verbose     verbose mode
  44       --help        display this help and exit
  45       --version     display version information and exit
  46
  47 With no FILE, or when FILE is -, read standard input.
  48
  49 Report bugs to <bug-gzip@gnu.org>."
  50
  51 case $1 in
  52 --help)    printf '%s\n' "$usage"   || exit 1; exit;;
  53 --version) printf '%s\n' "$version" || exit 1; exit;;
  54 esac
  55
  56 exec 'gzip' -d "$@"