libalien-gnuplot-perl software package provides module to find and validate the gnuplot executable, 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 libalien-gnuplot-perl
libalien-gnuplot-perl is installed in your system.
Make ensure the libalien-gnuplot-perl package were installed using the commands given below,
$ sudo dpkg-query -l | grep libalien-gnuplot-perl *
You will get with libalien-gnuplot-perl package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Perl |
| Package | libalien-gnuplot-perl |
| Version | 1.030-1 |
| Description | module to find and validate the gnuplot executable |
| Sub Section | Perl |