The show-interface-status script mirrors the Cisco IOS command "show interface status".
This script displays the logical-interface name, status, VLAN members, speed and duplex of the Ethernet switching-interfaces on the system. It is meant to provide similar output to the Cisco IOS command "show interface status". A command-line argument exists (interface) that filters the exact interface. Error checking is performed based on the interface entered by the user.
See the document show-interface-status