functions/usage.sh

   1 #!/bin/sh
   2
   3 ## live-build(7) - System Build Scripts
   4 ## Copyright (C) 2006-2014 Daniel Baumann <mail@daniel-baumann.ch>
   5 ##
   6 ## This program comes with ABSOLUTELY NO WARRANTY; for details see COPYING.
   7 ## This is free software, and you are welcome to redistribute it
   8 ## under certain conditions; see COPYING for details.
   9
  10
  11 Usage ()
  12 {
  13         printf "%s - %s\n" "${PROGRAM}" "${DESCRIPTION}"
  14         echo
  15         Echo "Usage:"
  16         echo
  17
  18         if [ -n "${USAGE}" ]
  19         then
  20                 Echo " ${USAGE}"
  21                 echo
  22         fi
  23
  24         printf "  %s [-h|--help]\n" "${PROGRAM}"
  25         printf "  %s [-u|--usage]\n" "${PROGRAM}"
  26         printf "  %s [-v|--version]\n" "${PROGRAM}"
  27         echo
  28         Echo "Try \"%s --help\" for more information." "${PROGRAM}"
  29
  30         exit 1
  31 }