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
-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"
-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.
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/>. This page
is part of the util-linux (a random collection of Linux
utilities) project. Information about the project can be found at
⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩. If you have
a bug report for this manual page, send it to
email@example.com. This page was obtained from the
project's upstream Git repository
2023-12-22. (At that time, the date of the most recent commit
that was found in the repository was 2023-12-14.) If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page,
or you have corrections or improvements to the information in
this COLOPHON (which is not part of the original manual page),
send a mail to firstname.lastname@example.org
util-linux 2.39.594-1e0ad 2023-07-19 WDCTL(8)