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Forum: Shell Programming and Scripting 10-13-2008

What does this do in bash: ${pid:-}

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ahh, I see. now it all makes sense. thnx!

ahh, I see. now it all makes sense. thnx!

Forum: Shell Programming and Scripting 10-12-2008

What does this do in bash: ${pid:-}

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Posted By

What does this do in bash: ${pid:-}

As i understand it, this means
if pid is
a) unset, or
b) set to null
then replace with the value on the right of the minus sign--which is null

This confuses me because
a) I thought...

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