What are the ways by which I can intall .deb type package in Ubuntu. I think this need some command line reference. But as I am not familiar with the operating system then what will a better solution. Also does Ubuntu open up zip files or can I create a compressed archive in this platform. If yes then how. Also if I installed any application then how can I remove the same back. Linke in Windows we use Add/Remove option. Does the same exist in Ubuntu. Thanks.