# 12345678901234 is renamed to 12345678901.gz
-# Copyright (C) 2002 Free Software Foundation
+# Copyright (C) 2002, 2007, 2010-2018 Free Software Foundation, Inc.
# Copyright (C) 1993 Jean-loup Gailly
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
+# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-PATH="BINDIR:$PATH"; export PATH
-
version="zforce (gzip) @VERSION@
-Copyright (C) 2006 Free Software Foundation, Inc.
+Copyright (C) 2010-2018 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it under the terms of
-the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
+the GNU General Public License <https://www.gnu.org/licenses/gpl.html>.
There is NO WARRANTY, to the extent permitted by law.
Written by Jean-loup Gailly."
-usage="Usage: zforce [FILE]...
+usage="Usage: $0 [FILE]...
Force a .gz extension on all compressed FILEs so that gzip will
not compress them twice.
Report bugs to <bug-gzip@gnu.org>."
if test $# = 0; then
- echo "$usage"
+ printf >&2 '%s\n' "$0: invalid number of operands; try \`$0 --help' for help"
exit 1
fi
res=0
for i do
case "$i" in
- --h*) exec echo "$usage";;
- --v*) exec echo "$version";;
+ --h*) printf '%s\n' "$usage" || exit 1; exit;;
+ --v*) printf '%s\n' "$version" || exit 1; exit;;
*[-.]z | *[-.]gz | *.t[ag]z) continue;;
esac
if test ! -f "$i" ; then
- echo zforce: $i not a file
+ printf '%s\n' "zforce: $i not a file"
res=1
continue
fi
if gzip -lv < "$i" 2>/dev/null | grep '^defl' > /dev/null; then
new="$i.gz"
- if mv "$i" "$new"; then
- echo $i -- replaced with $new
- else
- res=$?
- fi
+ mv "$i" "$new" && printf '%s\n' "$i -- replaced with $new" || res=1
fi
done
exit $res