scripts/strip-script.sh

   1 # Copyright (c) 2007
   2 #       Thorsten Glaser <tg@mirbsd.de>
   3 #
   4 # Provided that these terms and disclaimer and all copyright notices
   5 # are retained or reproduced in an accompanying document, permission
   6 # is granted to deal in this work without restriction, including un-
   7 # limited rights to use, publicly perform, distribute, sell, modify,
   8 # merge, give away, or sublicence.
   9 #
  10 # Advertising materials mentioning features or use of this work must
  11 # display the following acknowledgement:
  12 #       This product includes material provided by Thorsten Glaser.
  13 # This acknowledgement does not need to be reprinted if this work is
  14 # linked into a bigger work whose licence does not allow such clause
  15 # and the author of this work is given due credit in the bigger work
  16 # or its accompanying documents, where such information is generally
  17 # kept, provided that said credits are retained.
  18 #
  19 # This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
  20 # the utmost extent permitted by applicable law, neither express nor
  21 # implied; without malicious intent or gross negligence. In no event
  22 # may a licensor, author or contributor be held liable for indirect,
  23 # direct, other damage, loss, or other issues arising in any way out
  24 # of dealing in the work, even if advised of the possibility of such
  25 # damage or existence of a defect, except proven that it results out
  26 # of said person's immediate fault when using the work as intended.
  27 # Shell script to strip down a shell script (filter).
  28
  29 shopt -s extglob
  30 cat "$@" | while read -r _line; do
  31         set -o noglob
  32         [[ $_line = \#* && $_line != @(#!)* ]] && continue
  33         [[ -n $_line ]] && builtin printf '%s\n' "$_line"
  34 done
  35 exit 0