If you plan on working with multiple Terraform projects you are going to want to check out TFEnv. It is inevitable that at some point you will come across a situation where one project requires one version of the Terraform command line tool and another project requires a different version.

You could download the binaries for both versions manually then alias them but that is a pain. No, instead just install TFEnv and use it just like nvm or pyenv. It is pretty simple:

tfenv install <some version>  

It really is a simple tool that will improve your quality of life as you manage your Infrastructure As Code projects.

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