cpl-plugin-fors-calib software package provides ESO data reduction pipeline calibration data downloader for FORS2, you can install in your Debian 9 (Stretch) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install cpl-plugin-fors-calib
cpl-plugin-fors-calib is installed in your system.
Make ensure the cpl-plugin-fors-calib package were installed using the commands given below,
$ sudo dpkg-query -l | grep cpl-plugin-fors-calib *
You will get with cpl-plugin-fors-calib package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Science |
| Package | cpl-plugin-fors-calib |
| Version | 5.3.5+dfsg-1 |
| Description | ESO data reduction pipeline calibration data downloader for FORS2 |
| Sub Section | Science |