Adapted from: http://linuxcommand.org/wss0010.php
Most modern Linux distributions encourage a practice in which each user has a specific directory for the programs he/she personally uses. This directory is called bin and is a subdirectory of your home directory. If you do not already have one, create it with the following command:
mkdir bin # It is empty. Am I correct?
This bin directory is different from /usr/bin . Am I correct?
Now, before you become too confused about what I just said, let's make an alias. Make sure you are in your home directory. Using your favorite text editor, open the file .bash_profile and add this line to the end of the file:
alias l='ls -l'
Is the home directory /home or /home/username?
Either way I cant find where the .bash_profile file is.