They both do. Take a look at the manual page for use and the manual page for require, which should be available on your system as perldoc -f use and perldoc -f require

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re: difference between 'use' and 'require' by Joost
in thread difference between 'use' and 'require' by rup173

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