| # Gemini CLI | |
| 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). | |
| ## Navigating this section | |
| - **[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. | |
| - **[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. | |
| ## Non-interactive mode | |
| 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. | |
| The following example pipes a command to Gemini CLI from your terminal: | |
| ```bash | |
| echo "What is fine tuning?" | gemini | |
| ``` | |
| 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: | |
| ```bash | |
| gemini -p "What is fine tuning?" | |
| ``` | |