The alias command can be quite useful for creating handy shortcuts and save you some typing. It has this general syntax:
# General alias syntax
where ‘name’ is the alias name and command is any valid shell command. If you want your aliases to be persistant then put them in your ~/.bashrc file.
For example, you can create some handy shortcuts for apt-get:
# Alias for apt-get
Restart your shell and you should be good to go!
Now you can simply type
install firefox instead of
sudo apt-get install firefox.
It is a common practice to put all your aliases in a separate file and then load that file into your .bashrc. The way to do this is to copy all the aliases to another file say, .bash_aliases.
Then, edit your .bashrc file and add the following code:
# include .bash_aliases if it exists
Inform the shell of these changes by executing the command:
If you are on Ubuntu, you do not have to edit the .bashrc file; .bash_aliases will be already included for you.