help Linux Commands
What is Linux help Command?
help COMMAND: help command is used to get help and information about the command with options, what can be done with the command.
|| output short description for each topic.
|| display usage in pseudo-manpage format.
|| output only a short usage synopsis for each topic matching PATTERN.
In the above example, the help cmd displays the information about help command.
Display information about builtin commands.
Displays brief summaries of builtin commands. If PATTERN is
specified, gives detailed help on all commands matching PATTERN,
otherwise the list of help topics is printed.
-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
PATTERN Pattern specifiying a help topic
Returns success unless PATTERN is not found or an invalid option is given.