.Dd December 5, 2014 .Dt VTALLOW 1 ubase\-VERSION .Os .Sh NAME .Nm vtallow .Nd enable or disable the VT switch .Sh SYNOPSIS .Nm vtallow .Ar n | Ar y .Sh DESCRIPTION .Nm controls the VT switch lock. .Pp .Sh OPTIONS .Bl -tag -width Ds .It Ar n Disable VT switching. .It Ar y Enable VT switching. .El .Sh SEE ALSO .Xr chvt 1