Linux alias Command: How to Use It With Examples

October 21, 2021


Depending on the type of work you do on your Linux system, you may need to enter the same long and complicated commands frequently. The alias command lets you create shortcuts for these commands, making them easier to remember and use.

In this tutorial, we will show you how you can create, review, and remove command aliases in Linux.

Linux alias command


  • A system running a Linux distribution
  • An account with sudo privileges
  • Access to the terminal window or command line
  • A text editor, such as Vim or nano

What Is an Alias in Linux?

In Linux, an alias is a shortcut that references a command. An alias replaces a string that invokes a command in the Linux shell with another user-defined string.

Aliases are mostly used to replace long commands, improving efficiency and avoiding potential spelling errors. Aliases can also replace commands with additional options, making them easier to use.

Linux Alias Syntax

The alias command uses the following syntax:

alias [option] [name]='[value]'

The different elements of the alias command syntax are:

  • alias: Invokes the alias command.
  • [option]: Allows the command to list all current aliases.
  • [name]: Defines the new shortcut that references a command. A name is a user-defined string, excluding special characters and 'alias' and 'unalias', which cannot be used as names.
  • [value]: Specifies the command the alias references. Commands can also include options, arguments, and variables. A value can also be a path to a script you want to execute.

Note: Enclosing the value in single quotation marks (') will not expand any variables used with the command. To expand the variables, use double quotation marks (").

Create Aliases in Linux

There are two types of aliases to create in Linux:

  • Temporary. Add them using the alias command.
  • Permanent. These require to edit system files.

Create a Temporary Alias in Linux

Use the alias command to create a temporary alias that lasts until the end of the current terminal session. For instance, creating c as an alias for the clear command:

alias c='clear'

Note: The alias command allows you to include multiple commands as the value by dividing them with the pipe symbol (|).

If you want to reference any additional command options when creating an alias, include them as a part of the value. For example, adding move as an alias for the mv command with the option of asking for confirmation before overwriting:

alias move='mv -i'

Note: Learn more about the mv command in our guide to moving directories in Linux.

Another use for aliases is to create a shortcut for running scripts. To do this, provide the absolute path to the script as the value:

alias frename='Example/Test/'

In this example, using frename as a command runs the bash script.

Create a Permanent Alias in Linux

To make an alias permanent, you need to add it to your shell configuration file. Depending on the type of shell you are using, use:

  • Bash shell: ~/.bashrc
  • Zsh shell: ~/.zshrc
  • Fish shell: ~/.config/fish/

Start by opening the shell configuration file in a text editor. In this example, we are using the Bash shell and nano text editor:

sudo nano ~/.bashrc

Scroll down until you find a section that lists default system aliases. For ease of use, create a separate section with a descriptive comment and add your aliases using the alias command syntax.

In our example:

#Custom aliases
alias c='clear'
alias move='mv -i'
alias frename='Example/Test/'
Adding custom aliases to the bash configuration file

Once you add all of the new alises, press Ctrl+X, type Y and press Enter to save the changes to the configuration file.

The new aliases automatically load in the next terminal session. If you want to use them in the current session, load the configuration file using the source command:

source ~/.bashrc

List All Aliases in Linux

Using the alias command on its own displays a list of all currently set aliases:

Listing all current aliases in Linux

Another method is to add the -p flag. This option displays the list in a format suitable for input to the shell:

alias -p

Remove Aliases in Linux

To remove an alias, use the unalias command with the following syntax:

unalias [name]

For instance, to remove the frename alias:

unalias frename
Removing an alias using the unalias command

Adding the -a option allows you to remove all aliases:

unalias -a
Removing all aliases using the unalias command

The example above shows how alias does not return any results after the unalias -a command.


After reading this tutorial, you should be able to use the alias command to create and manage aliases on your Linux system. This will help streamline your work and make terminal commands easier to use.

To learn more about other commands in Linux, check out our Linux commands cheat sheet.

Was this article helpful?
Aleksandar Kovačević
With a background in both design and writing, Aleksandar Kovacevic aims to bring a fresh perspective to writing for IT, making complicated concepts easy to understand and approach.
Next you should read
How to Use the Linux watch Command with Examples
August 11, 2021

The built-in Linux watch command allows you to repeatedly run a user-defined command in regular time intervals. Learn how to use it in this tutorial.
Read more
Linux Source Command with Examples
July 22, 2021

The Linux source command allows you to execute a list of commands from a text file or script. Learn the different ways you can use the source command in this tutorial.
Read more
How to Use the wall Command in Linux
February 18, 2021

The wall command allows sending terminal messages to all logged-in users at once. This feature is particularly useful in scenarios when system administrators perform system maintenance tasks.
Read more
How to Use the Linux tee Command
January 28, 2021

By default in Linux, a command received through standard input writes directly to standard output. The tee command changes that behavior by allowing another command to use a file as the output.
Read more