I am not familiar with awk, what's the 's+= $7'? What is the argument 2 passed t... | Hacker News

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		zxcdw on Dec 30, 2012 \| parent \| context \| favorite \| on: Top Unix Command Line Utilities I am not familiar with awk, what's the 's+= $7'? What is the argument 2 passed to wc? Why is the produced output different? What am I missing here?

coldgrnd on Dec 30, 2012 [–]

s += $7 means "add the content of the 7th column to the total"

zxcdw on Dec 30, 2012 | [–]

Makes sense, thanks!

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