If your saying that perl is installed, but you don't have any man pages, i.e. if 'perldoc perl' or 'man perl' doesn't work, then something is broken. Or maybe the perl you run linked to another directory not in your path. (does 'ls -l $(which perl)' indicate, e.g. that you're running /usr/local/bin/perl but its just a link to /opt/perl/bin/perl, and '/opt/perl/bin' is not in your PATH, and '/opt/perl/man' is not in your MANPATH).