# 1Password CLI get-started (summary) - Works on macOS, Windows, and Linux. - macOS/Linux shells: bash, zsh, sh, fish. - Windows shell: PowerShell. - Requires a 1Password subscription and the desktop app to use app integration. - macOS requirement: Big Sur 11.0.0 or later. - Linux app integration requires PolKit + an auth agent. - Install the CLI per the official doc for your OS. - Enable desktop app integration in the 1Password app: - Open and unlock the app, then select your account/collection. - macOS: Settings > Developer > Integrate with 1Password CLI (Touch ID optional). - Windows: turn on Windows Hello, then Settings > Developer > Integrate. - Linux: Settings > Security > Unlock using system authentication, then Settings > Developer > Integrate. - After integration, run any command to sign in (example in docs: `op vault list`). - If multiple accounts: use `op signin` to pick one, or `--account` / `OP_ACCOUNT`. - For non-integration auth, use `op account add`.