Difference between revisions of "Diagnostic Messages"
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== Time == | == Time == | ||
<code>-d</code> show time delta between printed messages</br> | <code>-d</code> show time delta between printed messages</br> | ||
<code>-e</code> show local time and time delta in readable format</br> | <code>-e</code> show local time and time delta in readable format</br> | ||
<code>-t</code> don't show any timestamp with messages</br> | <code>-t</code> don't show any timestamp with messages</br> | ||
<code>-T</code> show human-readable timestamp (may be inaccurate)</br> | <code>-T</code> show human-readable timestamp (may be inaccurate)</br> | ||
Latest revision as of 13:14, 21 August 2023
dmesg
May be used on most Unix-like operating systems to query th message buffer of the kernel. The output includes messages produced by the device drivers.
Use
dmesg | tail show latest messages
Useful Flags
-D disable printing messages to console
-E enable printing messages to console
-l <level> restrict output to defined level
-w print all and wait for new messages
-W wait for and print only new messages
-x decode facility and level to readable string
Time
-d show time delta between printed messages
-e show local time and time delta in readable format
-t don't show any timestamp with messages
-T show human-readable timestamp (may be inaccurate)