2 # sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh
4 # Bzcmp/diff wrapped for bzip2,
5 # adapted from zdiff by Philippe Troin <phil@fifi.org> for Debian GNU/Linux.
7 # Bzcmp and bzdiff are used to invoke the cmp or the diff pro-
8 # gram on compressed files. All options specified are passed
9 # directly to cmp or diff. If only 1 file is specified, then
10 # the files compared are file1 and an uncompressed file1.gz.
11 # If two files are specified, then they are uncompressed (if
12 # necessary) and fed to cmp or diff. The exit status from cmp
13 # or diff is preserved.
15 PATH="/usr/bin:/bin:$PATH"; export PATH
16 prog=`echo $0 | sed 's|.*/||'`
18 *cmp) comp=${CMP-cmp} ;;
19 *) comp=${DIFF-diff} ;;
27 -*) OPTIONS="$OPTIONS $ARG";;
28 *) if test -f "$ARG"; then
31 echo "${prog}: $ARG not found or not a regular file"
36 if test -z "$FILES"; then
37 echo "Usage: $prog [${comp}_options] file [file]"
41 if test $# -eq 1; then
42 FILE=`echo "$1" | sed 's/.bz2$//'`
43 bzip2 -cd "$FILE.bz2" | $comp $OPTIONS - "$FILE"
46 elif test $# -eq 2; then
51 F=`echo "$2" | sed 's|.*/||;s|.bz2$||'`
52 tmp=`mktemp "${TMPDIR:-/tmp}"/bzdiff.XXXXXXXXXX` || {
53 echo 'cannot create a temporary file' >&2
56 bzip2 -cdfq "$2" > "$tmp"
57 bzip2 -cdfq "$1" | $comp $OPTIONS - "$tmp"
61 *) bzip2 -cdfq "$1" | $comp $OPTIONS - "$2"
66 bzip2 -cdfq "$2" | $comp $OPTIONS "$1" -
68 *) $comp $OPTIONS "$1" "$2"
73 echo "Usage: $prog [${comp}_options] file [file]"