fping -ag 192.168.0.0/24 | xargs -l bash -c 'xargs curl --connect-timeout 1 -s $0:22 >/dev/null && echo -e "$0\n"' | xargs | xargs -l bash -c 'echo "$0 " && xargs sshpass -p student ssh -o StrictHostKeyChecking=no -T student@$0 2>/dev/null' | xargs | grep Welcome | awk -F ' ' '{print $1}'