List of Available Commands
vCLI and ESXCLI Commands lists all ESX/ESXi 4.1 vCLI commands in alphabetical order and the corresponding ESXCLI command if available. No new commands were added in vSphere 5.0. Many new namespaces were added to ESXCLI in vSphere 5.0.
vCLI and ESXCLI Commands 
esxcli (new syntax)
resxtop (No ESXCLI equivalent)
See Using resxtop for Performance Monitoring. See the vSphere Resource Management documentation for a detailed reference.
svmotion (No ESXCLI
vicfg-authconfig (No ESXCLI equivalent).
vicfg-cfgbackup (No ESXCLI equivalent), Cannot run against a vCenter Server system.
Sets both the partition (esxcli system coredump partition) and the network (esxcli system coredump network) to use for core dumps. Use this command to set up ESXi Dump Collector.
vicfg-hostops (No ESXCLI equivalent)
vicfg-ipsec (No ESXCLI equivalent)
vicfg-ntp (No ESXCLI equivalent)
vicfg-route (No ESXCLI equivalent)
vicfg-snmp (No ESXCLI equivalent)
Manages the SNMP agent. Managing ESXi SNMP Agents with vicfg-snmp. Using SNMP in a vSphere environment is discussed in detail in the vSphere Monitoring and Performance documentation.
The vCenter Server and Host Management documentation explains how to set up system logs using the vSphere Client.
vicfg-user (No ESXCLI equivalent)
The vSphere Security documentation discusses security implications of user management and custom roles.
vifs (No ESXCLI equivalent)
Run esxcli software vib against ESXi 5.0.
Run vihostupdate against ESX/ESXi 4.x.
Run vihostupdate35 against ESX/ESXi 3.5.
You cannot run vihostupdate against ESXi 5.0 hosts.
vmkfstools (No ESXCLI equivalent)
vmware-cmd (No ESXCLI equivalent)