4.3BSD-Reno/share/man/cat1/tty.0

Compare this file to the similar file:
Show the results in this format: 




TTY(1)		    UNIX Programmer's Manual		   TTY(1)



NNAAMMEE
     tty - return user's terminal name

SSYYNNOOPPSSIISS
     ttttyy [ -s ]

DDEESSCCRRIIPPTTIIOONN
     The _t_t_y utility writes the name of the terminal attached to
     standard input to standard output.  The name that is written
     is the string returned by _t_t_y_n_a_m_e(3).  If the standard input
     is not a terminal, the message ``not a tty'' is written.
     The options are as follows:

     -s   Don't write the terminal name; only the exit status is
	  affected when this option is specified.  The -_s option
	  is deprecated in favor of the ``test -t 0'' command.

     _T_t_y exits 0 if the standard input is a terminal, 1 if the
     standard input is not a terminal, and >1 if an error occurs.

SSEEEE AALLSSOO
     test(1), ttyname(3)

SSTTAANNDDAARRDDSS
     The _t_t_y function is expected to be POSIX 1003.2 compatible.






























Printed 7/27/90                1Q				1