From https://once.com/writebook

app/assets/markdown/demo/10-the-once-command.md

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+---
+title: The ONCE command
+---
+# ONCE command reference
+
+Install and manage ONCE products.
+
+To run the `once` command in a terminal connect to your server using with either `SSH` or a web-based cloud console.
+
+## Usage:
+
+`once` - [command]
+
+## Manage passwords
+
+`password`  - manage passwords
+
+## Manage automatic updates
+
+`auto-update` - manage automatic updates
+
+## Manage application data
+
+`data` - manage application data
+
+## Additional Commands:
+
+`help` - Help about any command
+`setup` - Re-run the initial setup of Writebook
+`start` - Start Writebook
+`status` - Show the current status
+`stop` - Stop Writebook
+`update` - Update Writebook to the latest version
+
+## Flags:
+
+`-h`, `--help`  - help for once
+
+Use `once [command] --help` for more information about a command.