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IP address of current host

Terminal - IP address of current host
hostname -i
2009-04-17 21:26:56
User: kFiddle
Functions: hostname
-2
Up
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IP address of current host

I've seen some versions of hostname that don't have the -i option, so this may not work everywhere. When available, it's a better alternative than using ifconfig and wasting eyeball muscle to search for the address, and it's definitely simpler than using awk/sed.

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Alternatives

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Terminal - Alternatives

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What others think

On my ubuntu system, returns

127.0.0.1

which is less than useful. Trying

host $(hostname)

actually returns an IP though, but it fails on networks that use only IP's, and not dhcp client names

Comment by clockworkavian 213 weeks and 5 days ago

I don't know about the hard to find part, but you can always create a short alias with awk if finding an IP in ifconfig is that difficult for you.

Comment by Resolution 213 weeks and 5 days ago

The 'moreutils' package has another solution to this, and is available under the same name under debian/ubuntu. To ask for the network address of an interface, say

ifutils -pN eth0

to get the ip address of eth0. Although this only gives the right answer for only one of my two interfaces with actual IP addresses. Another way is to use the 'ip' command from the 'iproute' package:

ip addr show eth1

Or this hacky one in case you are behind a NAT to determine your external IP address:

wget www.whatismyip.com/automation/n09230945.asp -O - -o /dev/null
Comment by bwoodacre 213 weeks and 4 days ago

Your point of view

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