TTY(1)									TTY(1)

NAME
     tty - get the name of the terminal

SYNOPSIS
     tty [ -l ] [ -s ]

DESCRIPTION
     tty prints the path name of the user's terminal.

     -l	  prints the synchronous line number to which the user's terminal is
	  connected, if it is on an active synchronous line.

     -s	  inhibits printing of the terminal path name, allowing one to test
	  just the exit code.

				    EXIT CODES
		      2	  if invalid options were specified,
		      0	  if standard input is a terminal,
		      1	  otherwise.

DIAGNOSTICS
     ``not on an active synchronous line'' if the standard input is not a
     synchronous terminal and -l is specified.
     ``not a tty'' if the standard input is not a terminal and -s is not
     specified.

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