Comparing two files in linux terminal

Question

There are two files called \"a.txt\" and \"b.txt\" both have a list of words. Now I want to check which words are extra in \"a.txt\

Answer 1

You can also use: colordiff: Displays the output of diff with colors.

About vimdiff: It allows you to compare files via SSH, for example :

vimdiff /var/log/secure scp://192.168.1.25/var/log/secure

Extracted from: http://www.sysadmit.com/2016/05/linux-diferencias-entre-dos-archivos.html