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How to get the current upload and download speeds in terminal?

rated 0 times [ 15] [ 0] / answers: 1 / hits: 15016 / 1 Year ago, tue, march 7, 2023, 2:09:22

I want the terminal to output the current upload and download speeds of my network connection. I do not want to monitor the speeds in real time. I just want a "static" value to be able to write it in a file.

How do I achieve it?

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answered 1 Year ago disdry · Accepted Answer

Oddly the easiest way seems to be looking at /proc/net/dev. I've written the following to compare that file twice (with a second delay) and then to subtract the total bytes values. In this case em1 is the network adaptor so just change that to whatever you need to look at.

awk '/em1/ {i++; rx[i]=$2; tx[i]=$10}; END{print rx[2]-rx[1] " " tx[2]-tx[1]}' 

 <(cat /proc/net/dev; sleep 1; cat /proc/net/dev)

The output is two numbers. Received bytes per second followed by sent bytes per second.