There are numerous ways to compare text files on a Linux system from the command line. This post describes seven commands that can help you do this and explains how to interpret the results. So ...

The Linux comm command makes it easy to compare a couple text files and determine if they both contain the same lines -- whether the file contents are sorted or not.

Regdiff is a free software that lets you easily compare, merge and sort registry files. You can directly compare reg files with each other or with the local registry values on your system.