direnv software package provides Utility to set directory specific environment variables, 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 direnv
direnv is installed in your system.
Make ensure the direnv package were installed using the commands given below,
$ sudo dpkg-query -l | grep direnv *
You will get with direnv package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Utilities |
| Package | direnv |
| Version | 2.7.0-1 |
| Description | Utility to set directory specific environment variables |
| Sub Section | Utils |