How do I parse command line arguments in Bash?

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Say, I have a script that gets called with this line:

./myscript -vfd ./foo/bar/someFile -o /fizz/someOtherFile

or this one:

./myscript -v -f -d -o /fizz/someOtherFile ./foo/bar/someFile

What’s the accepted way of parsing this such that in each case (or some combination of the two) $v, $f, and $d will all be set to true and $outFile will be equal to /fizz/someOtherFile?

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