CertiGuide to A+ (A+ 4 Real)  9  Chapter 5: The Linux Operating System       9  Basic Concepts and Procedures for Creating, Viewing and Editing Files and Directories            9  Common Commands

locate - Index And Search Files 1 grep - Print Lines Matching A Pattern

The diff command provides a very useful function in that it can compare two text files and send the lines where they differ to the screen (standard output). Again the general form is:

diff [options] file1 file2

The output from diff will be only the lines in file1 and the corresponding lines in file2 where the two files differ.

A similar command, cmp, will compare two files but just give information as whether the files were identical or not.

locate - Index And Search Files 1 grep - Print Lines Matching A Pattern