8 Ways to Get Linux Shell Help

Whenever we start using new software or a new operating system, the interface and the environment in which we are accustomed also change. Sometimes a new environment is user-friendly, and it’s not difficult for us to interact with it. But sometimes the new environment is so complex and strange for us that we find ourselves completely ignorant. In this situation, we need someone to guide us, or some help from a new environment that can lead us to our goals. To do this, almost every software or operating system that we find there comes with some kind of built-in help to facilitate the work of naive and inexperienced users. If we are talking about a Ubuntu terminal or command line interface, then it also provides us with many ways to get help.

How to get help while working on a shell

Ways to get help from an Ubuntu terminal or from the command line are listed below:

Use the –h or –help command options

If you do not know how to use the command, i.e. you don’t know about its parameters, the type of the return value, etc., then you can use the –h or –help command.

How to use –h or –help?

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. Just enter the command you should know how to use the terminal with –h or –help after the space and press enter. And you will get full use of this command as shown below.

8 Ways to Get Linux Shell Help

Use tab completion in the command console

If you do not know the exact name of the command, you can use tab completion.

How to use tab completion?

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. Just enter the name of the command you know in the terminal, and then double-click the tab as shown below.

Tab Completion in Linux Shell

Unknown teams

If you want to use a command, but don’t know whether it is installed on Ubuntu or not, or if it exists, you don’t know the package containing it, even then you can use this command.

How to use an unknown command?

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. In any case, just type the command in the terminal and press enter. Your terminal will inform you whether it is installed or not, or if it is installed, in which package it exists. This is shown below.

Unknown Linux Team

Help team

This is a command that is used to list all the possible commands that are pre-installed on Ubuntu.

How to use help help

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. Just type help in the terminal and press enter. This is shown below.

Linux help team

Man command or man page

A person is used when you want to get a detailed team guide.

How to use man command?

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. Just write man in the terminal and after a space write the name of the command whose manual you want and press enter. This command works as shown below.

Linux man team

Example: run the command

man bash

to get extensive help on Linux bash shell.

Info command

Some teams do not have their own manuals or are written, or they are incomplete. To get help with these commands, we use the information.

How to use the information?

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. Just enter the information into the terminal and with a space enter the name of the team whose leadership does not exist and press the enter key. This is shown below.

8 Ways to Get Linux Shell Help

Example:

info bash

Apropos team

This command is used in conjunction with another command to find all the manual pages in which the last command exists.

How to use about?

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. Just enter apropos into the terminal and after a space enter the name of the command whose corresponding pages you want to find and press enter. This is shown below.

Linux apropos team

Whatis team

This command is used with another command only to show the use of the last line by the last command from its manual. This is a quick way to learn about using the command without learning the entire manual.

How to use whatis?

Launch the terminal by pressing Ctrl + Alt + T or just click the terminal icon on the taskbar. Just type whatis in the terminal and after a space enter the name of the command whose description you want and press Enter. This is shown below.

Linux whatis team

Using any of the above methods, you can get the appropriate help from the Ubuntu terminal or from the command line if you encounter problems using it.

8 Ways to Get Linux Shell Help

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