Generally, it's always a good idea to symbolically link the "real" version of Perl to /usr/bin/perl because it is very common practice to use the "shbang" line as the first line of a Perl script:
e.g.
#!/usr/bin/perl
or better still
#!/usr/bin/perl -w
Remember, UNIX has no notion of file extensions so "myfile.pl" only gets executed as a perl script either if the "shbang" line is correct or if the script is invoked as an argument to perl.
e.g. "perl myfile.pl"
If this symbolic link were not in place then you would need to modify your Perl scripts each time the Perl directory were moved. Using the symbolic link means that you make one change (to the link) when Perl is installed elsewhere and nothing else has to change. Thus, whether or not the Perl install routines creates this link, it's a good idea to have it.
If it ain't broke, I can fix that.
