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Useful with new unknown devices or just monitoring, probably useful for the sysadmin. Updates every 2 seconds. More here: http://linuxclisecurity.blogspot.com/2009/12/monitor-kernel-ring-buffer.html.
There are 3 alternatives - vote for the best!
Other logs can be monitored similarly, e.g.
watch "tail -15 /var/log/daemon.log"
If you can do better, submit your command here.
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