Show the hardware watchdog status.
Display the watchdog status
Display the watchdog status in a single line in key-value pairs
Display only specific watchdog flags (list is driver specific)
wdctl [options] [device...]
Show hardware watchdog status. The default device is /dev/watchdog. If more than one device is specified then the output is separated by one blank line.
If the device is already used or user has no permissions to read from the device, then wdctl reads data from sysfs. In this case information about supported features (flags) might be missing.
Note that the number of supported watchdog features is hardware specific.
-f, --flags list
Print only the specified flags.
Do not print information about flags.
Do not print watchdog identity information.
Do not print a header line for flags table.
-o, --output list
Define the output columns to use in table of watchdog flags. If no output arrangement is specified, then a default set is used. Use --help to get list of all supported columns.
Print all wanted information on one line in key="value" output format.
-p, --setpretimeout seconds
Set the watchdog pre-timeout in seconds. A watchdog pre-timeout is a notification generated by the watchdog before the watchdog reset might occur in the event the watchdog has not been serviced. This notification is handled by the kernel and can be configured to take an action using sysfs or by --setpregovernor.
-g, --setpregovernor governor
Set pre-timeout governor name. For available governors see default wdctl output.
Use the raw output format.
-s, --settimeout seconds
Set the watchdog timeout in seconds.
Do not print watchdog timeouts.
Same as -I -T.
Display help text and exit.
Print version and exit.
For bug reports, use the issue tracker at <https://github.com/util-linux/util-linux/issues>.
The wdctl command is part of the util-linux package which can be downloaded from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils/util-linux/>.