!NEC-PF5240> configure
configure: not found
!NEC-PF5240> show ?
  access-filter       Display the statistics information of access-filter
  accounting          Display the accounting information
  acknowledgments     Display acknowledgments
  auto-config         Display the information of auto-config
  axrp                Display the Ring Protocol information
  cfm                 Display the CFM information
  channel-group       Display the information on a Link Aggregation Protocol
  clock               Display clock of the system
  config-lock-status  Display lock status of configurations
  cpu                 Target is cpu utilization information
  dhcp                Display the information of DHCP
  dot1x               Display the status of 802.1X
  dumpfile            Display the information of dumpfile
  efmoam              Display the IEEE802.3ah/OAM information
  environment         Display the information of system environment
  file                Show contents of file
  flash               Display the information of flash memory
  gsrp                Display the GSRP information
  history             Display the list of commands that was entered
  igmp-snooping       Display the igmp-snooping information
  interfaces          Display the information of interfaces
  ip                  Display the information of IP routing program
  ip-dual             Display the information of IP and IPv6 routing program
  ipv6-dhcp           Display the information of IPv6 DHCP program
  license             Display licenses
  lldp                Display the LLDP information
  logging             Display the log information of router
  loop-detection      Display the information on an L2 Loop Detection
  mac-address-table   Display the mac-address-table information
  mc                  Display the information of MC
  memory              Display the status of memory
  mld-snooping        Display the mld-snooping information
  netconf             Display the information of netconf
  netstat             Display the status of network
  ntp                 Display the information of NTP
  oadp                Display the OADP information
  openflow            Display the OpenFlow information
  port                Display the information list of ports
  power               Display the information of power consumption
  processes           Display the status of process
  qos                 Display the statistics information of QoS
  qos-flow            Display the statistics information of qos-flow
  sessions            Display the login user name
  sflow               Display the information of sFlow
  spanning-tree       Display the information on a spanning tree protocol
  ssh                 Display the information of SSH Server
  system              Display the information of a system
  tcpdump             Dump traffic to/from this system
  tech-support        Display the general information about the switch
  track               Display the information of track
  version             Display the version of a system
  vlan                Display the VLAN information
  vrrpstatus          Display the status of VRRP
  whoami              Display the real user name
!NEC-PF5240> show 
show 
     ^