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Perl is a high-level, general-purpose, interpreted, dynamic programming language. Though Perl is not officially an acronym, [9] there are various backronyms in use, including "Practical Extraction and Reporting Language". [10] Perl was developed by Larry Wall in 1987 [11] as a general-purpose Unix scripting language to make report processing ...
Perl 5.6.1 and newer support autovivification of file and directory handles. [3] Calling open() on an undefined variable will set it to a filehandle. According to perl561delta, "[t]his largely eliminates the need for typeglobs when opening filehandles that must be passed around, as in the following example: