symlink
See the current Perl documentation for symlink.
Here is our local, out-dated (pre-5.6) version:
symlink - create a symbolic link to a file
symlink OLDFILE,NEWFILE
Creates a new filename symbolically linked to the old filename. Returns 1
for success, 0
otherwise. On systems that don't support symbolic links, produces a fatal
error at run time. To check for that, use eval:
$symlink_exists = eval { symlink("",""); 1 };