1# Running & Testing
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 3This section covers how to run, test, and debug your code without leaving Zed.
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 5## What's here
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 7- **[Tasks](./tasks.md)**: Define and run shell commands with access to editor context like the current file, selection, or symbol. Use tasks to build, lint, run scripts, or execute any repeatable workflow.
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 9- **[Debugger](./debugger.md)**: Set breakpoints, step through code, and inspect variables using Zed's built-in debugger. Works with C, C++, Go, JavaScript, Python, Rust, TypeScript, and more through the Debug Adapter Protocol.
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11- **[REPL](./repl.md)**: Run code interactively using Jupyter kernels. Execute selections or cells and see results inline—useful for Python, TypeScript (Deno), R, Julia, and other supported languages.
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13## Quick start
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15**Run a command**: Press `Cmd+Shift+T` (macOS) or `Ctrl+Shift+T` (Linux/Windows) to open the task picker, then type any shell command.
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17**Start debugging**: Press `Cmd+Shift+D` (macOS) or `Ctrl+Shift+D` (Linux/Windows) to open the debug panel and select a configuration.
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19**Run code interactively**: In a Python or TypeScript file, select some code and press `Ctrl+Shift+Enter` to execute it in a REPL session.