consoletype - print type of the console connected to stan
dard input
SYNOPSIS
consoletype
DESCRIPTION
consoletype prints the type of console connected to stan
dard input. It prints vt if console is a virtual terminal
(/dev/tty* or /dev/console device if not on a serial con
sole), 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.
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