Improved Parallel Echo for Screen

pecho.sh

#!/bin/bash

if [ "$1" == "" ]; then
	echo 'Usage: pecho [window_number [window_number [...]]]'
	return 1
fi
echo -e "\e[1m[echoing in parallel on screens $@]\e[0m"
stty -echo
while IFS= read -r -s -n1 c; do
	for screen in $@; do
		if [ "$c" == "" ]; then
			screen -X -p $screen stuff $'\012'
		else
			screen -X -p $screen stuff $"$c"
		fi
	done
done