How to measure line speed from the terminal

When studying at a university library, the line speed sometimes slows down. So I tried to find out how to measure the line speed from the terminal.

1. Installation

$ wget https://raw.githubusercontent.com/sivel/speedtest-cli/master/speedtest.py -O /usr/local/bin/speedtest
$ chmod u+x /usr/local/bin/speedtest

2. Set an alias (in .bashrc, etc.)

alias speedtest='/usr/local/bin/speedtest'

test

$ speedtest

Retrieving speedtest.net configuration...
Testing from Nagoya University (!address!)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by gatolabo (Maibara) [58.61 km]: 25.505 ms
Testing download speed................................................................................
Download: 18.74 Mbit/s
Testing upload speed....................................................................................................
Upload: 17.34 Mbit/s

reference

-[Measuring Internet speed from the terminal "speedtest_cli.py"](https://orebibou.com/2014/10/%E3%82%BF%E3%83%BC%E3%83%9F%E3% 83% 8A% E3% 83% AB% E4% B8% 8A% E3% 81% 8B% E3% 82% 89% E3% 82% A4% E3% 83% B3% E3% 82% BF% E3% 83% BC% E3% 83% 8D% E3% 83% 83% E3% 83% 88% E3% 82% B9% E3% 83% 94% E3% 83% BC% E3% 83% 89% E3% 82% 92% E8% A8% 88% E6% B8% AC /)

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