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The CodeCrafters CLI is a command-line tool that allows you to run tests & view test results from your local machine. Using the CLI is faster than using Git since you don’t need to commit your changes to run tests. If you haven’t installed the CLI yet, read this. If you’ve already installed the CLI, you can check its version by running: 
codecrafters --version
The latest available version can be found here. To update the CLI, follow the OS-specific instructions below.

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Mac

Re-run the install script: 
curl -fsSL https://codecrafters.io/install.sh | bash

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Linux

Re-run the install script: 
curl -fsSL https://codecrafters.io/install.sh | bash

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Windows

Run the install script:
irm https://codecrafters.io/install.ps1 | iex