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The competent programmer is fully aware of the strictly limited size of his own skull; therefore he approaches the programming task in full humility, and among other things he avoids clever tricks like the plague. |
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simpleton, just count the characters in the string.
ifconfig|perl -nE'/dr:(\S+)/&&say$1' is 34 characters not 36 as you suggest. Just 'echo -n ... | wc -c' it!
Your solution does not quite work. It does not list 127.0.0.1. Also, and IP can take 15 chars max (xxx.xxx.xxx.xxx), and you cut just 10...
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