srv[0]=ubuntu@ec2-23-20-0-217.compute-1.amazonaws.com
srv[1]=linaro-private.git.linaro.org

for server in ${srv[@]} ; do
    res=$(ssh -q $server "echo 2>&1" && echo OK || echo NOK)
    if [ $res == OK ]; then
	echo "Access to $server works"
    else
	echo "Can't access $server"
    fi
done