Get better at awk/sed/grep

This nice blog post illustrates some very handy usages of awk/grep/sed. It also includes examples in Perl but I find that on platforms where Perl is available then Python is not far away🙂

http://www.catonmat.net/blog/golfing-the-extraction-of-ip-addresses-from-ifconfig

This page lists some redundant and inefficient ways that less skilled developers use common UNIX-tools. Read very carefully.
http://www.catonmat.net/blog/golfing-the-extraction-of-ip-addresses-from-ifconfig

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