How to get last n number of records from a file using linux

Question

I'm running a command-line utility and it's producing 60 records(CSV) at a time and sleeps for one minute and producing 60 records again and so on.

I can redirect the output in a file but I want only the last 60 records to be saved (overwrite) for every minute.

Please help me to achieve this.

Answer 1

This can easily be done using the tail command.

Although tail -60 exists, I advise you to use tail -n 60 .