redhat man page for consoletype

CONSOLETYPE(1)						      General Commands Manual						    CONSOLETYPE(1)

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/con-
       sole 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.

RH
								   Red Hat, Inc 						    CONSOLETYPE(1)