| # Gemini CLI |
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| Within Gemini CLI, `packages/cli` is the frontend for users to send and receive prompts with the Gemini AI model and its associated tools. For a general overview of Gemini CLI, see the [main documentation page](../index.md). |
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| ## Navigating this section |
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| - **[Authentication](./authentication.md):** A guide to setting up authentication with Google's AI services. |
| - **[Commands](./commands.md):** A reference for Gemini CLI commands (e.g., `/help`, `/tools`, `/theme`). |
| - **[Configuration](./configuration.md):** A guide to tailoring Gemini CLI behavior using configuration files. |
| - **[Enterprise](./enterprise.md):** A guide to enterprise configuration. |
| - **[Token Caching](./token-caching.md):** Optimize API costs through token caching. |
| - **[Themes](./themes.md)**: A guide to customizing the CLI's appearance with different themes. |
| - **[Tutorials](tutorials.md)**: A tutorial showing how to use Gemini CLI to automate a development task. |
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| ## Non-interactive mode |
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| Gemini CLI can be run in a non-interactive mode, which is useful for scripting and automation. In this mode, you pipe input to the CLI, it executes the command, and then it exits. |
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| The following example pipes a command to Gemini CLI from your terminal: |
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| ```bash |
| echo "What is fine tuning?" | gemini |
| ``` |
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| Gemini CLI executes the command and prints the output to your terminal. Note that you can achieve the same behavior by using the `--prompt` or `-p` flag. For example: |
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| ```bash |
| gemini -p "What is fine tuning?" |
| ``` |
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