fgconsole

Print current terminal number

$ fgconsole

$ fgconsole [-n|--next-available]

fgconsole [options]

fgconsole prints the number of the foreground virtual terminal. If the terminal is serial, it prints "serial" instead of a number.
Part of kbd package for console management utilities.

-n, --next-available

Print next unallocated VT number

Only works on Linux console. Returns error if not on a virtual terminal. Part of kbd package.

chvt(1), openvt(1), deallocvt(1)