ttytype(5) [centos man page]

TTYTYPE(5)						     Linux Programmer's Manual							TTYTYPE(5)

NAME

       ttytype - terminal device to default terminal type mapping

DESCRIPTION

       The  /etc/ttytype  file	associates termcap(5)/terminfo(5) terminal type names with tty lines.  Each line consists of a terminal type, fol-
       lowed by whitespace, followed by a tty name (a device name without the /dev/) prefix.

       This association is used by the program tset(1) to set the environment variable TERM to the default terminal name for  the  user's  current
       tty.

       This  facility was designed for a traditional time-sharing environment featuring character-cell terminals hardwired to a UNIX minicomputer.
       It is little used on modern workstation and personal UNIX systems.

FILES

       /etc/ttytype
	      the tty definitions file.

EXAMPLE

       A typical /etc/ttytype is:

	      con80x25 tty1
	      vt320 ttys0

SEE ALSO

       termcap(5), terminfo(5), agetty(8), mingetty(8)

COLOPHON

       This page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2012-12-31								TTYTYPE(5)

TTY(4)							     Linux Programmer's Manual							    TTY(4)

NAME

       tty - controlling terminal

DESCRIPTION

       The  file /dev/tty is a character file with major number 5 and minor number 0, usually of mode 0666 and owner.group root.tty.  It is a syn-
       onym for the controlling terminal of a process, if any.

       In addition to the ioctl(2) requests supported by the device that tty refers to, the ioctl(2) request TIOCNOTTY is supported.

   TIOCNOTTY
       Detach the calling process from its controlling terminal.

       If the process is the session leader, then SIGHUP and SIGCONT signals are sent to the foreground process group and  all	processes  in  the
       current session lose their controlling tty.

       This ioctl(2) call works only on file descriptors connected to /dev/tty.  It is used by daemon processes when they are invoked by a user at
       a terminal.  The process attempts to open /dev/tty.  If the open succeeds, it detaches itself from the terminal by using  TIOCNOTTY,  while
       if the open fails, it is obviously not attached to a terminal and does not need to detach itself.

FILES

       /dev/tty

SEE ALSO

       chown(1), mknod(1), ioctl(2), termios(3), console(4), tty_ioctl(4), ttyS(4), agetty(8), mingetty(8)

COLOPHON

       This  page is part of release 3.53 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2003-04-07								    TTY(4)