NAME
    consoletype - print type of the console connected to standard input

SYNOPSIS
    consoletype

DESCRIPTION
    consoletype prints the type of console connected to standard input. It
    prints vt if console is a virtual terminal (/dev/tty* or /dev/console
    device if not on a serial console), serial if standard input is a
    serial console (/dev/console or /dev/ttyS*) and pty if standard  input
    is a pseudo terminal.

RETURN VALUE
    consoletype returns

    0   if on virtual terminal

    1   if on serial console

    2   if on a pseudo terminal.