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Summary

This hour you learned about opening and closing filehandles in Perl: You open files by using the open functions and close them by using close. When filehandles are open, they can be read with <> or read and written with print. Also, you learned about some of the oddities of how your operating system handles files and how to deal with them by using binmode.

Along the way, I hope that you also learned something about defensive programming.

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