: #!/bin/sh # zforce: force a gz extension on all gzip files so that gzip will not # compress them twice. # # This can be useful for files with names truncated after a file transfer. # 12345678901234 is renamed to 12345678901.gz # Copyright (C) 2002 Free Software Foundation # 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, or (at your option) # any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. PATH="BINDIR:$PATH"; export PATH x=`basename $0` if test $# = 0; then echo "force a '.gz' extension on all gzip files" echo usage: $x files... exit 1 fi res=0 for i do if test ! -f "$i" ; then echo ${x}: $i not a file res=1 continue fi case "$i" in *[-.]z | *[-.]gz | *.t[ag]z) continue;; esac 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 fi done exit $res