Nov-12-2016, 06:40 PM
Challenge #1: this is the -V, --version-sort options of the 'sort' command :) (which, the way it works, applies to IP address just as well as to program versions).
Unless noted otherwise, code in my posts should be understood as "coding suggestions", and its use may require more neurones than the two necessary for Ctrl-C/Ctrl-V.
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