my @array = qw /One Two Three/; my $var = 2; print $array[$var], "\n"; #### my %hash = ( 1 => One, 2 => Two, 3 => Three); my $var = 2; print "$hash{$var}\n"; #### my ($oper, $rest) = shift, join ' ', @_; my $stop = 'stop'; my $force_stop = 'force_stop'; # ... if ($oper eq $stop) { run_stop ($rest); cleanup(); } elsif ($oper eq $force_stop) { run_force_stop ($rest); cleanup(); } elsif ($oper eq 'start') { run_start ($rest); } elsif ($oper eq 'force_start') { run_stop ($rest); cleanup(); run_start ($rest); } ... else { die "Unknown operation: $oper \n"; } #### my %dispatch_table = ( stop => sub {run_stop($rest); cleanup();}, force_stop => sub {run_force_stop($rest); cleanup();}, start => /&run_start(@rest), force_start => sub {run_stop ($rest); cleanup() ; run_start ($rest);}, ); #### my ($oper, $rest) = shift, join ' ', @_; if (defined $dispatch_table{$oper}) { $dispatch_table{$oper}->($rest); } else { die "Unknown operation: $oper \n"; }