#!/bin/bash
s=c  # p s c
. opts

# O=''
O=`xclip -selection $s -o`
while true; do
	X=`xclip -selection $s -o`
	if [ "$X" = "$O" ]; then
		sleep 1
		continue
	fi
	printf "%s\n" "$X"
	O="$X"
	sleep 1
done