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The help command

The help command displays information about builtin commands. Display information about builtin commands.

If a PATTERN is specified, this command gives detailed help on all commands matching the PATTERN, otherwise the list of available help topics is printed.

Syntax

$ help [-dms] [PATTERN ...]

Options

Option	Description
-d	Output short description for each topic.
-m	Display usage in pseudo-manpage format.
-s	Output only a short usage synopsis for each topic matching the provided PATTERN.

Examples of uses:

1. We get the complete information about the cd command

$ help cd

2. We get a short description about the pwd command

$ help -d pwd

3. We get the syntax of the cd command

$ help -s cd