Here’s a nice and quick way to see what software you have installed – assuming you’re using a distro with Aptitude.
Crack open your terminal. You can use CTRL + ALT + T. Enter this:
That doesn’t do you a whole lot of good, but it works. So, let’s make it more usable.
Now, open your Documents directory and you’ll have a handy list of your installed apps in a file with an intuitive name.