Mac 使用tcping命令測延時

首先前往Github下載該項目最新的release

值得一提的是，該項目的tcping比brew 安裝的那個功能更全面，多了測速功能，brew 安裝的只能用於檢測端口是否打開，根本沒啥作用。。

解壓之後，安裝一下：

➜  mv tcping /usr/local/bin/

然後看一下使用說明：

➜ 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

不僅可以淦他的域名，還能淦他的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