HELP Command in Linux

Help Command

Help command is a functionality in Linux that helps you to understand how a specific command can be used. Help can be used in 2 different syntax ways

Command: help <parameter>

Fig1: unable to find the output of ls using help command (ls is the executable command)

Fig2: Here, we can find the output of help command using help cd (shell in-built commands)

Command: <parameter> --help

Fig3 (Executable command) and Fig 4(shell inbuilt command), both shows the output using the syntax 2 help command.

Fig3:

Fig4:

In short,

Command: <parameter> --help

This command will provide you the information for both Executable and Shell in-built commands.

Command: help <parameter>

This command will provide you the information for only Shell in-built commands and not for Executable commands.

You can also view at my video tutorial explained in Tamil:

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