Gemini CLI
Use Gemini in headless one-shot mode. Positional text starts interactive mode; use -p/--prompt.
Quick start
gemini -p "Answer this question..."gemini -m <model> -p "Prompt..."gemini -p "Return JSON" --output-format json- stdin appends to
-p:cat notes.md | gemini -p "Summarize"
Extensions
- List:
gemini --list-extensions - Manage:
gemini extensions <command> - Skills:
gemini skills <command> - Hooks:
gemini hooks <command> - MCP:
gemini mcp <command>
Notes
- If auth is required, run
geminionce interactively and follow the login flow. - Avoid
--yolofor safety.