#!/bin/bash

if [ $# -eq 0 ]; then
	echo "Usage: $0 [FILES]"
	echo 
	echo "$0 is both cat as zcat."
fi

while [ $# -ne 0 ]; do
	case "$1" in
		*.gz)
			zcat "$1"
			shift
			;;
		*)
			cat "$1"
			shift
			;;
	esac
done