gnome-shell-extension-suspend- software package provides Gnome-shell extension to modify the suspend/shutdown buttons, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnome-shell-extension-suspend-
gnome-shell-extension-suspend- is installed in your system.
Make ensure the gnome-shell-extension-suspend- package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-shell-extension-suspend-*
You will get with gnome-shell-extension-suspend- package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | GNOME |
| Package | gnome-shell-extension-suspend- |
| Version | 0~git20150615-2 |
| Description | Gnome-shell extension to modify the suspend/shutdown buttons |
| Sub Section | GNOME |