FAQ
overflow

QUESTION

I have a growing log file for which I want to display only the last 15 lines. Here is what I know I can do:

tail -n 15 -F mylogfile.txt

As the log file is filled, tail appends the last lines to the display. I am looking for a solution that only displays the last 15 lines and get rid of the lines before the last 15 after it has been updated. Would you have an idea?

Thank you!

ANSWER

It might suffice to use watch:

$ watch tail -n 15 mylogfile.txt

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