Adam Young's Web Log

The Notebook of a Programmer Climber Musician Ex-Soldier Woodworker and a few other things

This little script will give you the ipv4 address for a given network interface, or list all of them if you leave the parameter blank:

#!/bin/bash

INTERFACE=$1

/sbin/ifconfig $INTERFACE | grep “inet addr” | cut -d\: -f 2 | cut -d” ” -f 1

Call it like this:

~/bin/interface2addr eth0

Miroslav Suchy on October 18, 2009 at 9:36 am said:

Unless you use non english locale. So you may want to use:
LANG= /sbin/ifconfig $INTERFACE | grep â€œinet addrâ€ | cut -d\: -f 2 | cut -dâ€ â€ -f 1
Adam Young on October 18, 2009 at 6:58 pm said:

Thanks for the note. I assume you got tripped up by the character set. What didn’t work?
Miroslav Suchy on October 19, 2009 at 6:45 am said:

“inet addr” is translated if locale is set. In Czech it is “inet adr”, which is quite similar, but other languages can have it translated very differently.