kde-l10n-fa software package provides Farsi (fa) localization files for KDE, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install kde-l10n-fa
kde-l10n-fa is installed in your system.
Make ensure the kde-l10n-fa package were installed using the commands given below,
$ sudo dpkg-query -l | grep kde-l10n-fa *
You will get with kde-l10n-fa package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Language packs |
| Package | kde-l10n-fa |
| Version | 4:4.14.0-1 |
| Description | Farsi (fa) localization files for KDE |
| Sub Section | localization |