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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. The CLI is available for Mac, Linux and Windows.

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Mac

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

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Linux

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