[CentOS] Terminal emulation and serial ports
Les Mikesell
lesmikesell at gmail.com
Tue Aug 25 16:54:27 UTC 2009
Robert Heller wrote:
>> Of course first I tried dmesg, and had to go through lots of output
>> until the last lines said it is indeed ttyUSB0. Then I tried 'ls
>> /dev/tty*' and there it was too. So I am on my way (I hope)...
>
> One of the really nifty tools (part of coreutils) is 'tail'. The
> output of dmesg (or the contents of /var/log/messages) is often large
> (and generally of no interest to the task at hand) and very often the
> info you want is in the last few lines (eg the blather generated by the
> Hotplug code), so it is useful to do:
>
> % dmesg|tail
>
> OR
>
> % tail /var/log/messages
>
> to get this information.
Or use 'less' for something a little more interactive:
dmesg |less
then you can use all the vi-style motion and search commands like
G - go to end
b - backwards page
?pattern<enter> - search backwards
etc.
--
Les Mikesell
lesmikesell at gmail.com
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