How to tail an ubuntu log file

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Borislav Hadzhiev

Sat Nov 28 20201 min read

How to follow updates to log files as they happen in real time, so you can more easily debug your ubuntu servers.

Most of your log files on linux are in the var/log directory.

It's always useful to be able to check the stream of information in a log file, so you don't have to constantly close and open the file to update it.

On Ubuntu you can do this in the following way:

sudo tail -f /var/log/auth.log

Note that the -f stands for follow.

Ubuntu is also nicely configured to automatically compress your log files and store them for you.

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