Get all IPs via ifconfig

ifconfig -a | perl -nle'/(\d+\.\d+\.\d+\.\d+)/ && print $1'
works on Linux and Solaris. I think it will work on nearly all *nix-es
Sample Output

By: sneaker
2009-07-31 09:49:17

1 Alternatives + Submit Alt

What Others Think

you can shrink the regex a little since the first three numbers have the same pattern: ifconfig -a | perl -nle'/((\d+\.){3}\d+)/ && print $1' (tested it, and it works on my system.)
bwoodacre · 680 weeks ago
Using awk: ifconfig -a | awk '/[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\./ { sub(/addr:/,""); print $2 }' Works on AIX & Linux
KevinM · 679 weeks and 4 days ago
Confirmed: this works in the Mac terminal as well.
mathias · 657 weeks and 2 days ago
That's works too: ifconfig -a | grep inet | grep -E '([[:digit:]]{1,2}.){4}' | awk '{print $2}'
evenme · 650 weeks 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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