1WDCTL(8)                     System Administration                    WDCTL(8)
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NAME

6       wdctl - show hardware watchdog status
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SYNOPSIS

9       wdctl [options] [device...]
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DESCRIPTION

12       Show hardware watchdog status. The default device is /dev/watchdog. If
13       more than one device is specified then the output is separated by one
14       blank line.
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16       If the device is already used or user has no permissions to read from
17       the device, then wdctl reads data from sysfs. In this case information
18       about supported features (flags) might be missing.
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20       Note that the number of supported watchdog features is hardware
21       specific.
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OPTIONS

24       -f, --flags list
25           Print only the specified flags.
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27       -F, --noflags
28           Do not print information about flags.
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30       -I, --noident
31           Do not print watchdog identity information.
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33       -n, --noheadings
34           Do not print a header line for flags table.
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36       -o, --output list
37           Define the output columns to use in table of watchdog flags. If no
38           output arrangement is specified, then a default set is used. Use
39           --help to get list of all supported columns.
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41       -O, --oneline
42           Print all wanted information on one line in key="value" output
43           format.
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45       -p, --setpretimeout seconds
46           Set the watchdog pre-timeout in seconds. A watchdog pre-timeout is
47           a notification generated by the watchdog before the watchdog reset
48           might occur in the event the watchdog has not been serviced. This
49           notification is handled by the kernel and can be configured to take
50           an action using sysfs or by --setpregovernor.
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52       -g, --setpregovernor governor
53           Set pre-timeout governor name. For available governors see default
54           wdctl output.
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56       -r, --raw
57           Use the raw output format.
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59       -s, --settimeout seconds
60           Set the watchdog timeout in seconds.
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62       -T, --notimeouts
63           Do not print watchdog timeouts.
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65       -x, --flags-only
66           Same as -I -T.
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68       -h, --help
69           Display help text and exit.
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71       -V, --version
72           Print version and exit.
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AUTHORS

75       Karel Zak <kzak@redhat.com>, Lennart Poettering
76       <lennart@poettering.net>
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REPORTING BUGS

79       For bug reports, use the issue tracker at
80       https://github.com/util-linux/util-linux/issues.
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AVAILABILITY

83       The wdctl command is part of the util-linux package which can be
84       downloaded from Linux Kernel Archive
85       <https://www.kernel.org/pub/linux/utils/util-linux/>.
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89util-linux 2.38                   2022-02-17                          WDCTL(8)
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