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WDCTL(8) System Administration WDCTL(8)


wdctl - show hardware watchdog status


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.

Note that the number of supported watchdog features is hardware specific.


-f, --flags list
Print only the specified flags.
-F, --noflags
Do not print information about flags.
-I, --noident
Do not print watchdog identity information.
-n, --noheadings
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.
-O, --oneline
Print all wanted information on one line in key="value" output format.
-r, --raw
Use the raw output format.
-s, -settimeout seconds
Set the watchdog timeout in seconds.
-T, --notimeouts
Do not print watchdog timeouts.
-x, --flags-only
Same as -I -T.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.


Karel Zak
Lennart Poettering


The wdctl command is part of the util-linux package and is available from Linux Kernel Archive.
July 2014 util-linux