LYCOS RETRIEVER 
Perl: Programs
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All versions of Perl do automatic data typing and memory management. The interpreter knows the type and storage requirements of every data object in the program; it allocates and frees storage for them as necessary using reference counting (so it cannot deallocate circular data structures without manual intervention). Legal type conversions—for example, conversions from number to string—are done automatically at run time; illegal type conversions are fatal errors.
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This is a line that needs to be in every Perl program you are going to use (at least on the server). It tells the program where to find the Perl interpreter so that the script can run. Without the line, the script will never get started, because it won't have a way to handle the statements. So, be sure to put this line first and make sure it points to the right place.
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Dreamhost uses Perl version 5.8.4. As with Python and PHP, you can build another version in your home directory if necessary. Just remember that these count against your total server storage. Most Perl programs should work fine with the installed version.
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Many people do not take advantage of the power behind Perl. Most instructional Perl material only teaches enough to get an interested programmer informed enough to write shell or C programs in Perl. This series will show you Perl's power, style, conventions, and its unique constructs.
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You should be able to view Perl's documentation with your man(1) program by including the proper directories in the appropriate start-up files, or in the MANPATH environment variable. To find out where the configuration has installed the manpages, type:
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The second line in the canonical form includes a semicolon, which is used to separate statements in Perl. With only a single statement in a block or file, a separator is unnecessary, so it can be omitted from the minimal form of the program – or more generally from the final statement in any block or file. The canonical form includes it because it is common to terminate every statement even when it is unnecessary to do so, as this makes editing easier: code can be added to or moved away from the end of a block or file without having to adjust semicolons.
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