wdctl:tldr:b6ed0

The wdctl --oneline command is used to display the status of the hardware watchdog on a Linux system in a concise format.

The wdctl command is a utility for managing the hardware watchdog feature, which is a timer-based mechanism that can reboot the system if it detects an unresponsive or hung state. It is commonly used in critical systems where high availability and reliability are crucial.

The --oneline option allows you to get a brief summary of the watchdog status in a single line. The output typically includes information like the watchdog interface, whether it is currently enabled or disabled, and the timeout interval configured for the watchdog.

By running wdctl --oneline, you can quickly check the status of the hardware watchdog to ensure it is functioning as expected and properly configured.