How to force backup through Time Machine in terminal I am trying to force Time Machine to do backup with terminal, to backup one virtual machine while it is saved and stopped, but till now I am unable to do that,

tmutil startbackup --auto


and then, to check if that backup has been made,

tmutil listbackup


but there is no new entry in the list after.
After check Time Machine GUI I notice that it was working as expected, but it was tacking a while because after backup there was also a cleaning part. There is no need for higher privileges to use this command.