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Find MAC address of Active Eth connection

Terminal - Find MAC address of Active Eth connection
/sbin/ifconfig|grep -B 1 inet |head -1 | awk '{print $5}'
2010-04-22 06:35:29
User: octopus
Functions: awk grep head
-2
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Find MAC address of Active Eth connection
Add to favourites | Report as malicious

Alternatives

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Terminal - Alternatives

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What others think

not every machine has only one NIC...

Comment by buzzy 161 weeks ago

This is not for one mac address. it will find the active eth connection and show you the mac address.

Comment by octopus 161 weeks ago

It shows the first ethernet connection. Could be that eth0 is not active, but eth1. And on FreeBSD it won't work.What you need to do is actually search for the MAC adress:

/sbin/ifconfig|grep ..:..:..:..:..:..|awk '{print $1" "$NF}'

This will show the name and the IP adress.

Comment by houghi 161 weeks ago

Here's a perlized variant:

/sbin/ifconfig|perl -lane 'print "$F[0] $F[$#F]" if /(..:){5}/'

though on a BSD box, netstat may be saner (with this particular command):

/bin/netstat -i|perl -lane 'print "$F[0] $F[3]" if /(..:){5}/'
Comment by zerokey 160 weeks and 6 days ago

Your point of view

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