-v|--version: Show the version of this tool and exit.--nologo: Suppress the output of the logo information. This option is useful for scripts.--settingspw: Specifiy a settings password.--settingspwfile: Specify a file containing the settings password.
The settings password is used for certain settings which need to
be stored in encrypted form for security reasons. At the moment,
the only encrypted setting is the iSCSI initiator secret, see
Section 7.17, “VBoxManage storageattach”. As long as no
settings password is specified, this information is stored in
plain text. After using the
--settingspw|--settingspwfile option once, it
must be always used. Otherwise, the encrypted setting cannot be
unencrypted.