what does the $ as a variable do?

[Todd Millecam]

You can see the value of any variable just by typing:
echo $STEAMROOT

It'll probably be something like /home/user/.steam
But, if you've installed your games in multiple locations, then it would
come back empty (because it would be an array or a list of directories),
and thus expand to nothing leaving:

rm -rf /*

Which means wipe your whole OS.

On Sun, Jan 18, 2015 at 5:49 PM, Michael Havens <bmike1 at gmail.com> wrote:

> people are reporting a bug in steam. apparently there is a line in it that
> is deleting all the personal data all connected read/write media.
>  this is how the line reads:
>
>
> rm -rf $STEAMROOT/*
>
>
> what does the '$' expand too?
> :-)~MIKE~(-:
>
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-- 
Todd Millecam
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