How to Use Aliases to Customize Ubuntu Commands

Using the command line seems rugged and unpleasant, but Linux has a way to ease things up and help you get things done with the command line by allowing you to use aliases to customize how you type commands.
Setting up Aliases

Aliases are a way for you to customize the commands by giving them aliases (nicknames). You can use them to remember hard commands or make short names to long commands you just hate to type. To setup aliases, right-click and create an empty file in your home directory and name it “.bash_aliases”. Notice the period at the beginning of the name that will make the file hidden. Press “Ctrl+H” to show the hidden files.

Read more at HowtoGeek