wdctl(8) — Linux manual page

NAME \| SYNOPSIS \| DESCRIPTION \| OPTIONS \| AUTHORS \| AVAILABILITY \| COLOPHON

WDCTL(8)                  System Administration                 WDCTL(8)

NAME top

       wdctl - show hardware watchdog status

SYNOPSIS top

       wdctl [options] [device...]

DESCRIPTION top

       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.

OPTIONS top

       -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.

AUTHORS top

       Karel Zak ⟨kzak@redhat.com⟩
       Lennart Poettering ⟨lennart@poettering.net⟩

AVAILABILITY top

       The wdctl command is part of the util-linux package and is
       available from Linux Kernel Archive 
       ⟨https://www.kernel.org/pub/linux/utils/util-linux/⟩.

COLOPHON top

       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
       util-linux@vger.kernel.org.  This page was obtained from the
       project's upstream Git repository
       ⟨git://git.kernel.org/pub/scm/utils/util-linux/util-linux.git⟩ on
       2020-12-18.  (At that time, the date of the most recent commit
       that was found in the repository was 2020-12-17.)  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
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       manual page), send a mail to man-pages@man7.org

util-linux                      July 2014                       WDCTL(8)