gpsd-clients software package provides Global Positioning System - clients, 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 gpsd-clients
gpsd-clients is installed in your system.
Make ensure the gpsd-clients package were installed using the commands given below,
$ sudo dpkg-query -l | grep gpsd-clients *
You will get with gpsd-clients package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Miscellaneous |
| Package | gpsd-clients |
| Version | 3.16-4 |
| Description | Global Positioning System - clients |
| Sub Section | Miscellaneous |