How to customize the Linux terminal with bash aliases

Open the Terminal app and then type the following commands:

1. Edit ~/. bash_aliases or ~/. bashrc file using: vi ~/. bash_aliases.
2. Append your bash alias.
3. For example append: alias update='sudo yum update'
4. Save and close the file.
5. Activate alias by typing: source ~/. bash_aliases.

1. Where do I put alias in bash?
2. How do I edit Bashrc in terminal?
3. How do I run an alias command in Linux?
4. How do bash aliases work?
5. How do I permanently create alias in Linux?
6. How do I create alias in bash?
7. How do I change the default shell in Linux?
8. How do I change the terminal name in Linux?
9. Where is .bashrc file in Linux?
10. What is alias command in Linux?
11. How do I run an alias in shell script?
12. What are the commands in Linux?

Where do I put alias in bash?

An alias is a (usually short) name that the shell translates into another (usually longer) name or command. Aliases allow you to define new commands by substituting a string for the first token of a simple command. They are typically placed in the ~/. bashrc (bash) or ~/.

How do I edit Bashrc in terminal?

1. Open the BASH configuration file for editing: sudo nano ~/.bashrc. ...
2. You can change the BASH prompt temporarily by using the export command. ...
3. Use the –H option to display a a full hostname: export PS1="\u\H " ...
4. Enter the following to show username, shell name, and version: export PS1="\u >\s\v "

How do I run an alias command in Linux?

What you need to do is type the word alias then use the name you wish to use to execute a command followed by "=" sign and quote the command you wish to alias. You can then use "wr" shortcut to go to the webroot directory. The problem with that alias is that it will only be available for your current terminal session.

How do bash aliases work?

A Bash alias is essentially nothing more than a keyboard shortcut, an abbreviation, a means of avoiding typing a long command sequence. If, for example, we include alias lm="ls -l | more" in the ~/. bashrc file, then each lm [1] typed at the command-line will automatically be replaced by a ls -l | more.

How do I permanently create alias in Linux?

Steps to create a permanent Bash alias:

1. Edit ~/. bash_aliases or ~/. bashrc file using: vi ~/. bash_aliases.
2. Append your bash alias.
3. For example append: alias update='sudo yum update'
4. Save and close the file.
5. Activate alias by typing: source ~/. bash_aliases.

How do I create alias in bash?

To create an alias in bash that is set every time you start a shell:

1. Open your ~/. bash_profile file.
2. Add a line with the alias—for example, alias lf='ls -F'
3. Save the file.
4. Quit the editor. The new alias will be set for the next shell you start.
5. Open a new Terminal window to check that the alias is set: alias.

How do I change the default shell in Linux?

To change your shell with chsh:

1. cat /etc/shells. At the shell prompt, list the available shells on your system with cat /etc/shells.
2. chsh. Enter chsh (for "change shell"). ...
3. /bin/zsh. Type in the path and name of your new shell.
4. su - yourid. Type in su - and your userid to relog in to verify that everything works correctly.

How do I change the terminal name in Linux?

The procedure to change the computer name on Ubuntu Linux:

1. Type the following command to edit /etc/hostname using nano or vi text editor: sudo nano /etc/hostname. Delete the old name and setup new name.
2. Next Edit the /etc/hosts file: sudo nano /etc/hosts. ...
3. Reboot the system to changes take effect: sudo reboot.

Where is .bashrc file in Linux?

There is also /etc/bashrc ( /etc/bash. bashrc in Debian-based Linux) which contains System wide functions and aliases . By default, this is set, even for non-interactive, non-login shells.

What is alias command in Linux?

alias command instructs the shell to replace one string with another string while executing the commands. When we often have to use a single big command multiple times, in those cases, we create something called as alias for that command.

How do I run an alias in shell script?

10 Answers

1. In your shell script use the full path rather then an alias.
2. In your shell script, set a variable, different syntax petsc='/home/your_user/petsc-3.2-p6/petsc-arch/bin/mpiexec' $petsc myexecutable.
3. Use a function in your script. ...
4. Source your aliases shopt -s expand_aliases source /home/your_user/.bashrc.

What are the commands in Linux?

which command in Linux is a command which is used to locate the executable file associated with the given command by searching it in the path environment variable. It has 3 return status as follows: 0 : If all specified commands are found and executable.