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/Perl 5.20

symlink

Creates a new filename symbolically linked to the old filename. Returns 1 for success, 0 otherwise. On systems that don't support symbolic links, raises an exception. To check for that, use eval:

$symlink_exists = eval { symlink("",""); 1 };

Portability issues: symlink in perlport.

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http://perldoc.perl.org/5.20.2/functions/symlink.html