I want to write a perl script which logs into cisco switches via telnet and parses the output of show mac-address-table. The problem is that different switches show me a different field layout. The WS-C3548-XL shows the fields in the order Destination Address Address Type VLAN Destination Port while the C2960 shows it like Vlan Mac Address Type Ports is there a way to tell show to print the fields in a predefined order?