Setup direnv on Ubuntu system to set your environment variable

direnv_setup.md

direnv setup on Ubuntu

direnv is an extension for your shell. It augments existing shells with a new feature that can load and unload environment variables depending on the current directory.

Use cases

• Load 12factor apps environment variables
• Create per-project isolated development environments
• Load secrets for deployment

Installation and how to use

• Install direnv if not installed

  sudo apt-get install direnv
  

• Change your directory where you want to set the environment variable

  cd devstack
  

• Set the desired variable in .envrc file

  echo export OPENEDX_RELEASE=maple.master > .envrc
  

• Allow direnv

  direnv allow .
  

• Check direnv status, whether the .envrc file is loaded or not

  direnv status
  

• Add the following line at the end of your ~/.bashrc file

  # Make sure it appears even after rvm, git-prompt, and other shell extensions that manipulate your prompt.
  eval "$(direnv hook bash)"
  

• Check your variable

  # If this doesn't work then close the Terminal and open again and move to you directory
  echo ${OPENEDX_RELEASE-nope}
  

References:

https://direnv.net/

http://manpages.ubuntu.com/manpages/focal/man1/direnv.1.html

https://forum.opencraft.com/t/devstack-tips-and-tricks-general-discussion/65/32