WDCTL(8) WDCTL(8) wdctl - show hardware watchdog status wdctl [] [...] 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 . -F, --noflags . -I, --noident . -n, --noheadings . -o, --output 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. -O, --oneline Print all wanted information on one line in key="value" output format. -p, --setpretimeout 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 . wdctl . -r, --raw . -s, --settimeout . -T, --notimeouts . -x, --flags-only *-I -T* . -h, --help . -V, --version Display version and exit. Karel Zak , Lennart Poettering For bug reports, use the issue tracker . wdctl Linux Kernel Archive util-linux . util-linux 2.41 2025-03-29 WDCTL(8)