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This is the comment you were replying to, attached to the weblog Determine your public IP address quickly

#9 Re: Determine your public IP address quickly Posted by Anonymous (64.142.xx.xx) on Wed 30 Jan 2008 at 20:50 using echo, nc, tail and tr: $ echo -e "GET http://checkip.dyndns.org/ HTTP/1.0\r\n\r\n"|nc checkip.dyndns.org 80|tail -1|tr -dc '[.0-9\n]' Also works from a reasonably complete busybox; add busybox to each command (I.E. 'busybox tr...') if you don't have symlinks. Then again, if you have a complete busybox, this works too: $ busybox wget -qO - http://checkip.dyndns.org |busybox tr -dc '[.0-9\n]'

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