Well, first off, why don't you just make you orignal hash something like this:
my %commands = (
cmd1 => \&do_cmd1,
cmd2 => \&do_cmd2,
....
);
This buys you the flexibility of passing arguments to the subs, if you so wish to
## untested, just something I thought up right now
chomp( $input = <STDIN> );
my( $cmd, @args ) = split( /\s+/, $input );
if( defined( $commands{ $cmd } ) ) {
$command{ $cmd }->( @args );
}
Obviously you would need to do more error checking and what not, but you get the idea. Also, if you might want to try useing Term::ReadLine and its related modules for soemthing like this. It's quite handy
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