gnome-system-log software package provides system log viewer for GNOME, 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 gnome-system-log
gnome-system-log is installed in your system.
Make ensure the gnome-system-log package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-system-log *
You will get with gnome-system-log package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | GNOME |
| Package | gnome-system-log |
| Version | 3.9.90-2 |
| Description | system log viewer for GNOME |
| Sub Section | GNOME |