fcitx software package provides Flexible Input Method Framework, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install fcitx
fcitx is installed in your system.
Make ensure the fcitx package were installed using the commands given below,
$ sudo dpkg-query -l | grep fcitx *
You will get with fcitx package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Utilities |
| Package | fcitx |
| Version | 1:4.2.0-1 |
| Description | Flexible Input Method Framework |
| Sub Section | Utils |