shcat2

UNIX下SH的实现源码

shcat()
{
	while read -r line
	do
		echo "$line"
	done
}

shcat2()
{
	while [ $# -ge 1 ]; do
		case "$1" in
		-)	shcat ;;
		*)	shcat < "$1" ;;
		esac
		shift
	done
	exit 0
}