Provided by: virtualbox_6.1.50-dfsg-1~ubuntu1.20.04.1_amd64 

NAME
VBoxHeadless - x86 virtualization solution
DESCRIPTION
Oracle VM VirtualBox Headless Interface (C) 2008-2019 Oracle Corporation All rights reserved.
Usage:
-s, -startvm, --startvm <name|uuid>
Start given VM (required argument)
-v, -vrde, --vrde on|off|config
Enable or disable the VRDE server or don't change the setting (default)
-e, -vrdeproperty, --vrdeproperty <name=[value]> Set a VRDE property:
"TCP/Ports" - comma-separated list of
ports the VRDE server can bind to; dash
between two port numbers specifies range
"TCP/Address" - interface IP the VRDE
server will bind to
--settingspw <pw>
Specify the settings password
--settingspwfile <file>
Specify a file containing the settings password
-start-paused, --start-paused
Start the VM in paused state
-c, -record, --record
Record the VM screen output to a file
-w, --videowidth
Video frame width when recording
-h, --videoheight
Video frame height when recording
-r, --videobitrate
Recording bit rate when recording
-f, --filename
File name when recording. The codec used will be chosen based on file extension
VBoxHeadless January 2019 VBOXHEADLESS(1)