: #!/bin/sh # sh is buggy on RS/6000 AIX 3.2. Replace above line with #!/bin/ksh # Zcmp and zdiff are used to invoke the cmp or the diff pro- # gram on compressed files. All options specified are passed # directly to cmp or diff. If only 1 file is specified, then # the files compared are file1 and an uncompressed file1.gz. # If two files are specified, then they are uncompressed (if # necessary) and fed to cmp or diff. The exit status from cmp # or diff is preserved. PATH="BINDIR:$PATH"; export PATH prog=`echo $0 | sed 's|.*/||'` case "$prog" in *cmp) comp=${CMP-cmp} ;; *) comp=${DIFF-diff} ;; esac OPTIONS= FILES= for ARG do case "$ARG" in -*) OPTIONS="$OPTIONS $ARG";; *) if test -f "$ARG"; then FILES="$FILES $ARG" else echo "${prog}: $ARG not found or not a regular file" exit 1 fi ;; esac done if test -z "$FILES"; then echo "Usage: $prog [${comp}_options] file [file]" exit 1 fi set $FILES if test $# -eq 1; then FILE=`echo "$1" | sed 's/[-.][zZtga]*$//'` gzip -cd "$1" | $comp $OPTIONS - "$FILE" STAT="$?" elif test $# -eq 2; then case "$1" in *[-.]gz* | *[-.][zZ] | *.t[ga]z) case "$2" in *[-.]gz* | *[-.][zZ] | *.t[ga]z) F=`echo "$2" | sed 's|.*/||;s|[-.][zZtga]*||'` gzip -cdfq "$2" > /tmp/"$F".$$ gzip -cdfq "$1" | $comp $OPTIONS - /tmp/"$F".$$ STAT="$?" /bin/rm -f /tmp/"$F".$$;; *) gzip -cdfq "$1" | $comp $OPTIONS - "$2" STAT="$?";; esac;; *) case "$2" in *[-.]gz* | *[-.][zZ] | *.t[ga]z) gzip -cdfq "$2" | $comp $OPTIONS "$1" - STAT="$?";; *) $comp $OPTIONS "$1" "$2" STAT="$?";; esac;; esac exit "$STAT" else echo "Usage: $prog [${comp}_options] file [file]" exit 1 fi