#! /bin/sh
# $Id: vfuncompr,v 1.1 2002/04/08 01:14:41 mis Exp $

PATH="/bin:/sbin:/usr/bin:/usr/sbin"

if [ "$#" != "2" ]; then
    echo "usage: `basename $0` FILE[.gz][.bz2] DESTFILE"
    exit 1
fi

src=$1
dest=$2

cmd="bunzip2 --keep --stdout ${src}"
if echo ${src} | egrep ".gz" >/dev/null; then
    cmd="gunzip --stdout ${src}"
fi

if [ ! -r $src -o ! -f $src ]; then
    echo "$src: no such file"
    exit 1
fi	

if [ -r $dest ]; then
    echo "$dest: file exists"
    exit 1
fi

if [ $dest == $src ]; then
    echo "dest and src are the same"
    exit 1
fi


echo -e "$cmd\n -> ${dest}"
$cmd > ${dest}