For those of you out there that are "trying" your hand at Ubuntu (just one flavour of Linux) and are experiencing some issues with Software installation via the "Terminal screen" and attempting to get your head around the correct syntax eg."sudo, apt-get install ubuntu-restricted-extras" and the like (I know I am, I am getting confused with the old days of DOS syntax) I have come across another "easy" installation procedure other than the built-in "Ubuntu Software Centre" installation, or downloading .deb files/packages when you can find them.
Have a read and look at: Getdeb.net
GetDeb Software Portal
GetDeb is an unofficial project with the mission to provide the latest open source and freeware applications for the current Ubuntu Linux release, in an easy to install manner.
The GetDeb repository extends the official repositories by providing latest versions and new applications. Unlike the official packages, GetDeb packages do not have a predefined release schedule - new software versions are provided as they become available from their authors. There is a short and limited testing phase instead of a full testing cycle to ensure packaging quality, however it is less strict than Ubuntu's official requirements.
So folks following their instructions will deliver a "foolproof" installation procedure that will have you installing all sorts of packages. I have just installed such things as: DVD movie RIP's, PDF editor, Video editing, Movie/Video/Music/Books/Picture data bases etc. I have even noticed business accounting packages similar to my QuickBooks Pro software I use in Windows XP.
I now am able to see if it is possible for me to replace Windows with Ubuntu for my day to day computer usage, well practice at it at least.