linux 测试网速
speedtest-cli --bytes Retrieving speedtest.net configuration... Testing from Beijing Weishichuangjie Technical Development Co. (123.196.126.50)... Retrieving speedtest.net server list... Selecting best server based on ping... Hosted by Beijing Telecom (Beijing) [1.69 km]: 3.796 ms Testing download speed................................................................................ Download: 5.30 Mbyte/s Testing upload speed................................................................................................ Upload: 4.47 Mbyte/s