NAME
    deallocvt - deallocate unused virtual consoles

SYNOPSIS
    deallocvt [N ...]

DESCRIPTION
    The command deallocvt deallocates kernel memory and data structures for
    all unused virtual consoles. If one or  more arguments N ...  are
    given, only the corresponding consoles /dev/ttyN are deallocated.

    A virtual console is unused if it is not the foreground console, and no
    process has it open for reading or writing, and no text has been
    selected on its screen.

SEE ALSO
   chvt(1),openvt(1)