Spotting spaces, and AWK's view of emptiness

Posted by Bob_Mesibov on Sep 9, 2020 5:36 PM EDT
BASHing data; By Bob Mesibov
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Presenting a sed command that highlights plain whitespaces and marks each one with a dot for easy counting, plus a re-examination of an AWK shorthand showing that "non-empty" is different from "non-empty and non-zero".

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