home *** CD-ROM | disk | FTP | other *** search
- :
- #!/bin/sh
- # zforce: force a z 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 123456789012.z
-
- x=`basename $0`
- if test $# = 0; then
- echo "force a '.z' extension on all gzip files"
- echo usage: $x files...
- exit 1
- fi
-
- res=0
- for i do
- if test ! -f "$i" ; then
- echo ${x}: $i not a file
- res=1
- continue
- fi
- test `expr "$i" : '.*[.-]z$'` -eq 0 || continue
- test `expr "$i" : '.*[.]t[ag]z$'` -eq 0 || continue
-
- gzip -t "$i" 2>/dev/null || continue
-
- if test `expr "$i" : '^.............$'` -eq 13; then
- new=`expr "$i" : '\(.*\).$`.z
- else
- new="$i.z"
- fi
- if mv "$i" "$new" 2>/dev/null; then
- echo $i -- replaced with $new
- continue
- fi
- new=`expr "$i" : '\(.*\)..$`.z
-
- if mv "$i" "$new" 2>/dev/null; then
- echo $i -- replaced with $new
- continue
- fi
- res=1; echo ${x}: cannot rename $i to $new
- done
- exit $res
-