ssh-copy-id for multiple servers

gistfile1.sh

set -x
[ -f "$0" ] && SCRIPT=$0

TARGET1=$1
shift 
TARGETS=$*
TARGET2=$1

for TARGET in $TARGETS
do
	echo "On $HOSTNAME Copying SSH Keys $TARGET1 <=> $TARGET"
	
	[ -f "~/.ssh/id_rsa" ] && ssh-keygen -t rsa -N '' -f ~/.ssh/id_rsa

	cat ~/.ssh/id_rsa.pub | ssh $TARGET 'mkdir .ssh; cat >> ~/.ssh/authorized_keys'
	ssh-keyscan $TARGET >> ~/.ssh/known_hosts
	ssh $TARGET '[ -f "~/.ssh/id_rsa" ] && ssh-keygen -t rsa -N "" -f ~/.ssh/id_rsa; cat ~/.ssh/id_rsa.pub' >> ~/.ssh/authorized_keys
	ssh $TARGET "ssh-keyscan $TARGET2" >> ~/.ssh/known_hosts
	
	[ -z "$SCRIPT" ] || ssh -t $TARGET 'bash -s' < $SCRIPT $TARGETS
	
done