plasma-widget-wifi software package provides A Plasma widget that displays WiFi connection strength, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install plasma-widget-wifi
plasma-widget-wifi is installed in your system.
Make ensure the plasma-widget-wifi package were installed using the commands given below,
$ sudo dpkg-query -l | grep plasma-widget-wifi *
You will get with plasma-widget-wifi package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Utilities |
| Package | plasma-widget-wifi |
| Version | 0.5+repack-0ubuntu1 |
| Description | A Plasma widget that displays WiFi connection strength |
| Sub Section | Utils |