Man Pages – Linux Manual Pages

diff3 – find differences between three files
USAGE
diff3 [options] mine older yours

DESCRIPTION
The diff3 command compares three files and outputs descriptions of
their differences.

The files [...]

diff – find differences between two files
USAGE
diff [options] from-file to-file

DESCRIPTION
In the simplest case, diff compares the contents of the two files from-
file and to-file. A file name of – stands for text read [...]

cvs – Concurrent Versions System
USAGE
cvs [ cvs_options ]
cvs_command [ command_options ] [ command_args ]

NOTE
This manpage is a summary of some of the features of cvs but [...]