For a complete list of all esxcli command enter:
esxcli esxcli command list
List of cli commands from virten.net.
Examples:
esxcli system version get
esxcli system hostname get
esxcli network ip interface ipv4 get
esxcli storage filesystem list
or
esxcli storage vmfs extent list
vim-cmd solo/registervm /vmfs/volumes/xxxxxxx/vmname/vmname.vmx
vim-cmd vmsvc/getallvms
or
esxcli vm process list
vim-cmd vmsvc/power.on <id>
vim-cmd vmsvc/power.getstate <id>
esxcli network ip dns server list
esxcli hardware ipmi sdr list