Also, the 'show platform' cmd requires an argument, e.g.:
#show platform ?
acl Display CWAN ACL commands
bridge Distributed/Hardware-based bridging information
buffers Show buffer allocation
cfm Show CFM Commands
eeprom Show CPU eeprom
etherchannel Platform EtherChannel information
fault Show fault data
hardware Show platform hardware information
internal-vlan Show internal vlan
netint Show platform net interrupt information
redundancy Display CWAN redundancy
software Show platform software information
stats Display CWAN statistics
supervisor Show supervisor info
tech-support Show system information for Tech-Support
tlb Show processor TLB registers
vfi Display CWAN VFI commands
vlans Display hidden VLAN to WAN interface mapping