To be totally off-topic, the tar utility was originally designed to not use dashes in its argument list. These days, most tar implementations accept arguments both with and without dashes, but many claim that you should use the dashes, which many people consider to be incorrect. Regardless, all implementations take arguments without dashes, but only most take them with dashes, so without dashes is more correct. (Spoken like a true old Unix fart.)
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Bitt Faulk