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#!/bin/sh -
umask 077
# zzcat - uncompress stdin and/or files to stdout
# Steve Kinzler, steve@kinzler.com, Nov 11
# http://kinzler.com/me/home.html#unix
case "$#" in
0) set x -; shift;;
esac
tmp=/tmp/zzcat$$
trap "rm -f $tmp; exit" 0 1 2 13 15
for file
do
in="$file"
case "$file" in
-) cat > $tmp
in=$tmp
case "`file $tmp`" in # warning, heuristic
*gzip*) file=.gz;;
*bzip2*) file=.bz2;;
*lzip*) file=.lz;;
*xz*) file=.xz;;
*compress*) file=.Z;;
*) file=;;
esac;;
esac
case "$file" in
*.gz|*.z) gzip -d -n;;
*.bz2) bzip2 -d;;
*.lz) lzip -d;;
*.xz) xz -d;;
*.Z) uncompress;;
*) cat;;
esac < "$in"
rm -f $tmp
done
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