centos man page for tty

TTY(1)								   User Commands							    TTY(1)

NAME
       tty - print the file name of the terminal connected to standard input

SYNOPSIS
       tty [OPTION]...

DESCRIPTION
       Print the file name of the terminal connected to standard input.

       -s, --silent, --quiet
	      print nothing, only return an exit status

       --help display this help and exit

       --version
	      output version information and exit

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report tty translation bugs to <http://translationproject.org/team/>

AUTHOR
       Written by David MacKenzie.

COPYRIGHT
       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       The  full  documentation  for tty is maintained as a Texinfo manual.  If the info and tty programs are properly installed at your site, the
       command

	      info coreutils 'tty invocation'

       should give you access to the complete manual.

GNU coreutils 8.22						     June 2014								    TTY(1)