bluez-tools software package provides Set of tools to manage Bluetooth devices for linux, 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 bluez-tools
bluez-tools is installed in your system.
Make ensure the bluez-tools package were installed using the commands given below,
$ sudo dpkg-query -l | grep bluez-tools *
You will get with bluez-tools package name, version, architecture and description in a table
| Distro | Debian 9 stretch |
| Section | Utilities |
| Package | bluez-tools |
| Version | 0.2.0~20140808-5+b1 |
| Description | Set of tools to manage Bluetooth devices for linux |
| Sub Section | Utils |