Here are instructions grouped according to the version of Ubuntu you are running.
== Maverick (10.10) ==
TeX Live and ConTeXt have been part of Ubuntu's main repositories since Ubuntu 7.10, so you can simply <code>apt-get install context</code> to install ConTeXt and its dependencies.
The dependencies pull in various PDF utilities which you will probably find useful, including <code>pdfcrop</code>.
If you would like to use the [http://www.tug.org/texworks/ TeXworks] GUI-based TeX editing environment usually included with TeX Live CDs, it is available via <code>apt-get install texworks</code> and will appear under Applications, Science & Math.
See also:
* [[Setting up TeXworks]]
* [[Using LuaTeX in Ubuntu]]
== Gutsy (7.10) ==