Get the IP address of a machine. Just the IP, no junk.

/sbin/ifconfig -a | awk '/(cast)/ { print $2 }' | cut -d':' -f2 | head -1

3
By: d4n3sh
2009-04-15 06:44:18

5 Alternatives + Submit Alt

What Others Think

Nice, I use this: /sbin/ifconfig -a |sed -n 's/.*addr:\(.*\)[ ]*Bcast.*/\1/p'
elzapp · 683 weeks and 5 days ago
awful !
megerdin · 683 weeks and 5 days ago
My Linksys router running Freewrt doesn't have ifconfig, and ip addr show includes CIDR notation for some annoying reason. So, I use this to get my external IP (not mine, something I found googling): ip -o addr show eth0 | awk '$3 == "inet" {split($4,i,"/"); print i[1]; exit}'
sud0er · 683 weeks and 5 days ago
Thanks elzapp, way better :D
d4n3sh · 683 weeks and 4 days ago
Sorry, I feel bad for voting you down after all the effort you put into this one, but you just need to use "hostname -i"
kFiddle · 683 weeks and 3 days ago
voted down because: a) It's already in the archive http://www.commandlinefu.com/commands/view/1669/alias-to-show-my-own-configured-ip b) It does not handle the situation when there are multiple network interfaces active. Assuming that the default route is via the network interface of interest: /sbin/ifconfig $(netstat -rn | grep "^0.0.0.0" | awk '{print $8}') | awk -F: '/inet addr/ {printf("%s\n",substr($2,1,index($2," "))) }'
mpb · 683 weeks and 1 day ago
/sbin/ifconfig -a |sed -n 's/.*addr:\(.*\)[ ]*Bcast.*/\1/p' This doesn`t work for me. - debian lenny - GNU sed Version 4.1.5
P17 · 680 weeks and 5 days ago
@kFiddle - nice one, but hostname -i returns 127.0.0.1 for me - better is recommended hostname -I with uppercase I - gives me IPv6 too
sashametro · 474 weeks ago
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seofox · 26 weeks and 2 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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