civicrm-common software package provides CiviCRM common files, 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 civicrm-common
civicrm-common is installed in your system.
Make ensure the civicrm-common package were installed using the commands given below,
$ sudo dpkg-query -l | grep civicrm-common *
You will get with civicrm-common package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Web Software |
| Package | civicrm-common |
| Version | 4.7.1+dfsg-2ubuntu1 |
| Description | CiviCRM common files |
| Sub Section | web |