Clever bash hack

Posted on April 20, 2012 by Christopher

I stubled across this from a colleague at my new gig:


#!/bin/bash
if uname -r | {
    IFS=.- read -r a b c _;
    [ "$((a*10000+b*100+c))" -lt 20622 ]; };

then echo 'Your kernel is too old!';

else echo 'Your kernel is 2.6.22 or newer!'

fi

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