HELP WITH TERMINAL COMMANDS

what terminal command do you mean ?

https://answers.launchpad.net/ubuntu/+source/gnome-terminal/+question/79374

The use of the Terminal in most cases is not needed as Ubuntu has the Synaptic Package Manager which allows you to easily install and remove software

Here is the Official Ubuntu Synaptic Package Manager Documentation
https://help.ubuntu.com/community/SynapticHowto

If you do need to use the Terminal

Here is the Official Ubuntu Terminal Documentation
https://help.ubuntu.com/community/UsingTheTerminal

To install individually downloaded deb. files then Ubuntu has the GDebi Package Installer (already built in to Ubuntu) which automatically starts up when you try to open a deb.file
http://allmyapps.com/app/ubuntu-9.04/gdebi-gdebi-package-installer

Ubuntu Installing Software
https://help.ubuntu.com/community/InstallingSoftware

Guide to installing software on Ubuntu (includes tar.gz and tar.bz2 files)
http://www.psychocats.net/ubuntu/installingsoftware

UBUNTU USER GUIDE

Ubuntu 9.04 (Jaunty Jackalope) User Guide
http://ubuntuguide.org/wiki/Ubuntu:Jaunty

LUg.

https://help.ubuntu.com/community/SwitchingToUbuntu/FromWindows

http://www.computerhope.com/unix.htm