Yes, I installed XCode. However, it never occurred to me that a good solution would be the one I'm more accustomed to -- getting some packaged distribution of Perl and managing it myself (without affecting the actual OS). Sounds great.
If possible, I'd like to get this working before taking the Unix crash course, so I have to ask: if there are two copies of Perl on the same machine, how do I keep the OS (and me) from getting confused when "perl" is typed on the command line -- will I have to use a different shebang line in scripts?
A monk's post (in 2005) suggests that there will not be a problem with paths, but that I should uninstall DBI and reinstall it with the new Perl. Still true?