Get last n lines of a file, similar to tail

Question

I\'m writing a log file viewer for a web application and for that I want to paginate through the lines of the log file. The items in the file are line based with the newest

Answer 1

I had to read a specific value from the last line of a file, and stumbled upon this thread. Rather than reinventing the wheel in Python, I ended up with a tiny shell script, saved as /usr/local/bin/get_last_netp:

#! /bin/bash
tail -n1 /home/leif/projects/transfer/export.log | awk {'print $14'}

And in the Python program:

from subprocess import check_output

last_netp = int(check_output("/usr/local/bin/get_last_netp"))