fgconsole(1) print the number of the active VT.


fgconsole [--help|--version|--next-available]


If the active VT is /dev/ttyN, then prints N on standard output.

If the console is a serial console, then "serial" is printed instead.

Will show the next unallocated virtual terminal. Normally 6 virtual terminals are allocated, with number 7 used for X; this will return "8" in this case.