bluez software package provides Bluetooth tools and daemons, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install bluez
bluez is installed in your system.
Make ensure the bluez package were installed using the commands given below,
$ sudo dpkg-query -l | grep bluez *
You will get with bluez package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Administration Utilities |
| Package | bluez |
| Version | 5.37-0ubuntu5 |
| Description | Bluetooth tools and daemons |
| Sub Section | admin |