Diff command on Linux (compare files)

The diff command in Linux is used to show the difference between the content of one file and another. Very useful for example for comparing configuration files.

Its use is quite simple, just indicate which files are for comparison:

$ diff LivroSubcapituloList2.php LivroSubcapituloList.php 30c30  $capituloid = new TCombo ('capituloid');

When comparing these files, on line 30 of both there is a difference.

This command can be useful for making quick checks on source code files, JSON, XML, etc.

Sometimes it is necessary to sort the files before comparing them using the sort command.

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Diff command on Linux (compare files)

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