Lib/std/bash

   1 #!/usr/bin/env bash
   2
   3 #=======================================================================
   4 # STDfilenameDTS
   5 # File ID: STDuuidDTS
   6 #
   7 # [Description]
   8 #
   9 # Author: Øyvind A. Holm <sunny@sunbase.org>
  10 # License: GNU General Public License version 2 or later.
  11 #=======================================================================
  12
  13 progname=STDfilenameDTS
  14 VERSION=0.0.0
  15
  16 ARGS="$(getopt -o "\
  17 h\
  18 q\
  19 v\
  20 " -l "\
  21 help,\
  22 quiet,\
  23 verbose,\
  24 version,\
  25 " -n "$progname" -- "$@")"
  26 test "$?" = "0" || exit 1
  27 eval set -- "$ARGS"
  28
  29 opt_help=0
  30 opt_quiet=0
  31 opt_verbose=0
  32
  33 while :; do
  34     case "$1" in
  35         -h|--help) opt_help=1; shift ;;
  36         -q|--quiet) opt_quiet=$(($opt_quiet + 1)); shift ;;
  37         -v|--verbose) opt_verbose=$(($opt_verbose + 1)); shift ;;
  38         --version) echo $progname $VERSION; exit 0 ;;
  39         --) shift; break ;;
  40         *) echo $progname: Internal error >&2; exit 1 ;;
  41     esac
  42 done
  43 opt_verbose=$(($opt_verbose - $opt_quiet))
  44
  45 if test "$opt_help" = "1"; then
  46     test $opt_verbose -gt 0 && { echo; echo $progname $VERSION; }
  47     cat <<END
  48
  49 Usage: $progname [options]
  50
  51 Options:
  52
  53   -h, --help
  54     Show this help.
  55   -q, --quiet
  56     Be more quiet. Can be repeated to increase silence.
  57   -v, --verbose
  58     Increase level of verbosity. Can be repeated.
  59   --version
  60     Print version information.
  61
  62 END
  63     exit 0
  64 fi
  65