[NCLUG] Regexp Help

[Gabriel L Somlo]

You could also replace all spaces with newlines using tr, then grep
for your MAC address, which will be guaranteed to be alone on a
separate line:

dmesg | tr '\ ' '\n' | grep ..:..:..:..:..:..

You might have to tweak the arguments to tr, but that's the general
idea...

Might this be a workable solution at all ?

Gabriel

-- 
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     Gabriel L.  Somlo                   Assistant System Administrator
Computer Science Department
 Colorado State University               e-mail: somlo at cs.colostate.edu
  601 Howes St. 2nd Floor                 phone: +1 (970) 491-5305
  Fort Collins,  CO 80523
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On Thu, 25 Jul 2002, Michael Dwyer wrote:

> I'm trying to do something that seems sooooo panfully easy to do, but I 
> cannot figure it out...
> 
> This snippet returns anything in the kernel ring buffer that looks like 
> a MAC address:
> 
>     dmesg | grep  ..:..:..:..:..:..
> 
> So I get lines like:
> 
>     foomatic.c Foo Ethernet Driver at 31:33:7b:ee:fc:ab. Initialized.
> 
> How, using only tools like grep, awk, sed, printf, cut, etc,  can I get 
> ONLY the mac address?  How do I get output like:
> 
>    31:33:7b:ee:fc:ab
> 
> Am I missing something totally obvious?
> 
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