But how are you looking for input in your interactive shell? Expect? (Which would be the logical choice).

IMHO, Getopt::Long is not made for what you're trying to do. Make aliases for whatever your shell is expecting. Use a hash as a lookup table or something.

# Not tested, or even sure if it makes sense.
%commands = (
     'add' => '&add',
     'view' => '&view',
     'delete' => '&delete',
     'a' => '\$commands{add}',
     'v' => '\$commands{view}',
     'd' => '\$commands{delete}',
);
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Cheers,
ibanix

$ echo '$0 & $0 &' > foo; chmod a+x foo; foo;