bibtool software package provides tool to manipulate BibTeX files, you can install in your Ubuntu 17.04 (Zesty Zapus) 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 17 |
| Section | TeX |
| Package | bibtool |
| Version | 2.66+ds-1 |
| Description | tool to manipulate BibTeX files |
| Sub Section | tex |