Perl Tutorials - Herong's Tutorial Examples - Version 5.40, by Dr. Herong Yang
binmode() - Opening Files for Binary Output
This section describes steps on how to open file for binary output using open(), binmode() and print() functions.
If you want to open a file and write binary data to it, you should use the following functions:
Note that the print() function can be used in both binary mode and text mode. In binary mode, print() will not convert \n to \r\n in Windows system.
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