Overview:

tfenv - is an open-source Terraform version manager tool. With this tool, you can easily install any required version of Terraform on your system and switch to other versions if needed.

Tested:
Ubuntu 20.04

Installation:

1. Clone source files into ~/.tfenv:

   git clone https://github.com/tfutils/tfenv.git ~/.tfenv
   

2. Add ~/.tfenv/bin to your $PATH:

   echo 'export PATH="$HOME/.tfenv/bin:$PATH"' >> ~/.bash_profile
   

3. Create symlink to the executable:

   sudo ln -s ~/.tfenv/bin/* /usr/local/bin
   

Usage:

1. To get installed version:

   tfenv --version
   

2. To get list of all available commands:

   tfenv
   

3. To list all installed versions:

   tfenv list
   

4. To list all installable versions from remote repositories:

   tfenv list-remote
   

5. To install a specific version of Terraform use:

   tfenv install [version]
   

6. To uninstall a specific version use:

   tfenv uninstall [version]
   

7. To switch to a specific version use:

   tfenv use [version]
   

8. To write the current active version to ./.terraform-version use:

   tfenv pin
   

Uninstall:

1. Delete entry from ~/.bash_profile file:

   grep -v 'export PATH="$HOME/.tfenv/bin:$PATH"' ~/.bash_profile > ~/.bash_profile_tmp && mv ~/.bash_profile_tmp ~/.bash_profile
   

2. Unlink symlink:

   sudo unlink /usr/local/bin/tfenv
   

3. Delete ~/.tfenv folder:

   rm -rf ~/.tfenv/
   

Reference:

1. .terraform-version
2. Delete Lines in a Text File That Contain a Specific String