Edit: Due to the fact that this article is old, the installation instructions may not work anymore. In order to successfully install the latest version of Texstudio, please access the texstudio tag and open the latest article (the one on top).

The latest installation instructions for Texstudio
Hello Linux Geeksters. As you may know, TeXstudio is an open-source integrated writing environment for creating LaTeX documents. Among others, it has syntax highlighting features, an integrated viewer, reference checking, completion for references and bibliography entries, access to over 1000 mathematical symbols easy and a feature for performing copy/paste/insert new table columns operations with a single click.
The latest version available is TeXstudio 2.8.0, which has been released a while ago. For more information about this release, see the changelog.
In this article I will show you how to instal TeXstudio 2.8.0 on Ubuntu 14.04 Trusty Tahr, Ubuntu 13.10 Saucy Salamander, Ubuntu 12.04 Precise Pangolin, Linux Mint 17 Qiana, Linux Mint 16 Petra, Linux Mint 13 Maya, Pinguy OS 14.04, Pinguy OS 12.04, Elementary OS 0.3 Freya, Elementary OS 0.2 Luna, Peppermint Five, Linux Lite 2.0 and other Ubuntu derivative systems.
Because it is available via PPA, installing TeXstudio 2.8.0 on Ubuntu 14.04, Ubuntu 13.10 and Ubuntu 12.04 systems is easy. All you have to do is add the ppa to your system, update the local repository index and install the texstudio package. Like this:
$ sudo apt-add-repository ppa:blahota/texstudio
$ sudo apt-get update
$ sudo apt-get install texstudio
Optional, to remove texstudio, do:
$ sudo apt-get remove texstudio