bibtool software package provides tool to manipulate BibTeX 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 bibtool
bibtool is installed in your system.
Make ensure the bibtool package were installed using the commands given below,
$ sudo dpkg-query -l | grep bibtool *
You will get with bibtool package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | TeX |
| Package | bibtool |
| Version | 2.63+ds-1 |
| Description | tool to manipulate BibTeX files |
| Sub Section | TeX |