renaming vswitch0 using esxcli

Inherited a  pacthwork esx install done using " interactive" process with esx shell enabled ....how do go in and cleanup/modify the default configs in place in terms of  naming convention etc ?

For instance the interactive process followed by DCUI had created the vSwitch0 (managment network) .. and now would like to go in the esx shell and rename /clean

i am aware of esxcli commands to add vswitch, adding port groups adding uplinks, add vmk0,ip  etc ...but how do i just rename a existing vswitch0 to a more meaningful name using the shell ?

Thanks and appreciate as newbie