kde-workspace-kgreet-plugins software package provides KDE greet libraries for authentication, 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 kde-workspace-kgreet-plugins
kde-workspace-kgreet-plugins is installed in your system.
Make ensure the kde-workspace-kgreet-plugins package were installed using the commands given below,
$ sudo dpkg-query -l | grep kde-workspace-kgreet-plugins *
You will get with kde-workspace-kgreet-plugins package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | Libraries |
| Package | kde-workspace-kgreet-plugins |
| Version | 4:4.8.5-0ubuntu0.4 [amd64, i38 |
| Description | KDE greet libraries for authentication |
| Sub Section | libs |