title: How to create an alias for the current session?
body: <p>If you use an alias in a terminal, e.g. alias a=b it will stay in the current terminal, but if you open another terminal you have to set up the alias again. In order to make the alias permanent you can add the alias to the .bash_profile and this will apply it to all the terminals permanently.
  My question is how to set up an alias for all the terminals but only for the current session, i.e. if I log out the alias is gone.
  Thanks </p>