How to make tail -f show time when line was appended?

November 11, 2021 by admin

I’d like to know the time when line was appended when file is being tail -f‘ed.

Is it possible to configure tail to do something like that?

Answer

It is possible. Try the following:

tail -f /tmp/log.txt | awk '{ print strftime("%Y-%m-%d %H:%M:%S"), $0; }'

Attribution
Source : Link , Question Author : UAdapter , Answer Author : earthmeLon