首先前往Github下载该项目最新的release
值得一提的是，该项目的tcping比brew 安装的那个功能更全面，多了测速功能，brew 安装的只能用于检测端口是否打开，根本没啥作用。。
解压之后，安装一下：
➜ mv tcping /usr/local/bin/
然后看一下使用说明：
➜ tcping
tcping is a ping over tcp connection.
Examples:
1. ping over tcp with custom port 10 times
> tcping www.baidu.com 80
2. ping over tcp with custom port 5 times
> tcping -c 5 www.baidu.com 443
USAGE: tcping [--count <count>] <ip> <port>
ARGUMENTS:
<ip> The IP or Domain to tcping.
<port> The port to tcping.
OPTIONS:
-c, --count <count> The number of times to repeat 'tcping'. Default value is 10, Max value is 65535
-h, --help Show help information.
日常淦百度：
➜ tcping -c 5 baidu.com 443
baidu.com:443 has address: 220.181.38.148:443 - Connected - 32.682ms
baidu.com:443 has address: 220.181.38.148:443 - Connected - 29.372ms
baidu.com:443 has address: 39.156.69.79:443 - Connected - 52.232ms
baidu.com:443 has address: 220.181.38.148:443 - Connected - 28.922ms
baidu.com:443 has address: 220.181.38.148:443 - Connected - 28.975ms
Ping statistics baidu.com:443
5 probes sent.
5 successful, 0 failed.
Approximate trip times:
Minimum = 28.922ms, Maximum = 52.232ms, Average = 34.437ms
不仅可以淦他的域名，还能淦他的IP：
➜ bin tcping -c 5 220.181.38.148 443
220.181.38.148:443 - Connected - 30.635ms
220.181.38.148:443 - Connected - 30.816ms
220.181.38.148:443 - Connected - 28.708ms
220.181.38.148:443 - Connected - 30.713ms
220.181.38.148:443 - Connected - 34.641ms
Ping statistics 220.181.38.148:443
5 probes sent.
5 successful, 0 failed.
Approximate trip times:
Minimum = 28.708ms, Maximum = 34.641ms, Average = 31.103ms
