# Running the Tests Choose your operating system: * [Windows](#windows) * [Mac OS X](#mac-os-x) * [Linux](#linux) ---- # Windows 1. Open a Command Prompt. 2. Get the first exercise: ```batchfile C:\Users\JohnDoe>exercism fetch kotlin  Not Submitted: 1 problem Kotlin (Hello World) C:\Users\JohnDoe\exercism\kotlin\hello-world New: 1 problem Kotlin (Hello World) C:\Users\JohnDoe\exercism\kotlin\hello-world unchanged: 0, updated: 0, new: 1 ``` 3. Change directory into the exercism: ```batchfile C:\Users\JohnDoe>cd C:\Users\JohnDoe\exercism\kotlin\hello-world ``` 4. Run the tests: ```batchfile C:\Users\JohnDoe>gradle test ``` *(Don't worry about the tests failing, at first, this is how you begin each exercise.)* 5. Solve the exercise. Find and work through the `GETTING_STARTED.md` guide ([view on GitHub](https://github.com/exercism/xkotlin/blob/master/exercises/hello-world/GETTING_STARTED.md)). Good luck! Have fun! If you get stuck, at any point, don't forget to reach out for [help](http://exercism.io/languages/kotlin/help). ---- # Mac OS X 1. In the terminal window, get the first exercise: ``` $ exercism fetch kotlin New: 1 problem Kotlin (Etl) /Users/johndoe/exercism/kotlin/hello-world unchanged: 0, updated: 0, new: 1 ``` 2. Change directory into the exercise: ``` $ cd /Users/johndoe/exercism/kotlin/hello-world ``` 3. Run the tests: ``` $ gradle test ``` *(Don't worry about the tests failing, at first, this is how you begin each exercise.)* 4. Solve the exercise. Find and work through the `GETTING_STARTED.md` guide ([view on GitHub](https://github.com/exercism/xkotlin/blob/master/exercises/hello-world/GETTING_STARTED.md)). Good luck! Have fun! If you get stuck, at any point, don't forget to reach out for [help](http://exercism.io/languages/kotlin/help). ---- # Linux 1. In the terminal window, get the first exercise: ``` $ exercism fetch kotlin New: 1 problem Kotlin (Etl) /home/johndoe/exercism/kotlin/hello-world unchanged: 0, updated: 0, new: 1 ``` 2. Change directory into the exercise: ``` $ cd /home/johndoe/exercism/kotlin/hello-world ``` 3. Run the tests: ``` $ gradle test ``` *(Don't worry about the tests failing, at first, this is how you begin each exercise.)* 4. Solve the exercise. Find and work through the `GETTING_STARTED.md` guide ([view on GitHub](https://github.com/exercism/xkotlin/blob/master/exercises/hello-world/GETTING_STARTED.md)). Good luck! Have fun! If you get stuck, at any point, don't forget to reach out for [help](http://exercism.io/languages/kotlin/help).