For a single user under Ubuntu 12.04, or a perl install just for a single user, you can take advantage of that system automagically placing the directory ~/bin/ if it exists at the front of the path. If you do this, no linking or manual fiddling with the path is necessary, and everything can be kept under the home directory.
# doing this manually probably makes more sense :)
if (! [ -d ~/bin/ ]; then mkdir ~/bin/; fi # create ~/bin/ if it does
+n't already exist
mv ~/localperl/* ~/bin/ # move the new perl install th
See from which path the perl executable will run from the command line:
I like using a shebang line #!/usr/bin/env perl
to run scripts under the same version shown by which perl
unless hard-coding to a particular version is desired.
You'll still want to investigate setting PERL5LIB for module installations. Here is a decent simple explanation.
Perlbrew as mentioned is a good alternative to all this.