http://www.perlmonks.org?node_id=407807


in reply to How to alias a whole namespace to another namespace (in this case main::)

How about just setting your current namespace with "package Util", and use/require all the modules...they'll go into that namespace. When you want them in main namespace for a while, just take out "package Util" from the code.
the hardest line to type correctly is: stty erase ^H