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What is the $? (dollar question mark) variable in shell scripting?

Asked 2011-07-26T18:08:14.940
343

I'm trying to learn shell scripting, and I need to understand someone else's code. What is the $? variable hold? I can't Google search the answer because they block punctuation characters.

shell scripting
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2 Answers

52

That is the exit status of the last executed function/program/command. Refer to:

answered 2011-07-26T18:09:48.067
12

$? is the result (exit code) of the last executed command.

answered 2011-07-26T18:09:45.413

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