consoletype(1) - phpMan

CONSOLETYPE(1)              General Commands Manual             CONSOLETYPE(1)
NAME
       consoletype - print type of the console connected to standard input
SYNOPSIS
       consoletype [stdout] [fg]
DESCRIPTION
       consoletype prints the type of console connected to standard input, and
       checks whether the console connected to standard input is  the  current
       foreground  virtual console. With no arguments, 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 ter-
       minal.
RETURN VALUE
       consoletype when passed no arguments returns
       0      if on virtual terminal
       1      if on serial console
       2      if on a pseudo terminal.
       When passed the stdout argument, consoletype returns
       0      in all cases, and prints the console type to stdout.
       When passed the fg argument, consoletype returns
       0      if  the  console connected to standard input is the current vir-
              tual terminal
       1      otherwise.
RH                               Red Hat, Inc                   CONSOLETYPE(1)