[CentOS] GRabbing MAC address

On Thu, 2008-02-28 at 08:51 -0500, Toby Bluhm wrote:
> Jerry Geis wrote:
> > I am trying to grab the mac address for eth0 on centos 5.1 with
> >
> > ifconfig | grep eth0 | cut -d ' ' -f 5 and I dont get anything.
> >
> > What am I not doing right?
> >
> > ifconfig | grep eth0 | cut -d ' ' -f 1 gives me eth0 but anything else 
> > like -f 2, -f 3 etc
> > I get nothing.
> >
> > Jerry
> >
> 
> There's multiple spaces in the output that cut is hitting - use tr to 
> reduce them.
> 
> ifconfig | grep eth0 | tr -s ' ' ' ' | cut -d ' ' -f 5

/sbin/ifconfig | grep eth0 | awk '{ print $5 }'

for the lazy way or "man gawk" to see how to select and print and skip
lines of no interest, eliminating the grep.

> 
> 

HTH
-- 
Bill