地址：https://github.com/jlyo/tcping.git
Installation: ------------ make install Usage: ----- tcping hostname (uses port 80) or tcping -p port hostname ping once: tcping -p port -c 1 hostname tcping returns: 0 on success 2 if the host or service could not be resolved 127 on other errors examples: tcping -p 8080 127.0.0.1 Please support my opensource development: http://www.vanheusden.com/wishlist.php