tty
print the file name of the terminal connected to standard input
1. tty.1.man
Manpage of TTY
TTY
Section: User Commands (1)Updated: January 2008
Index Return to Main Contents
NAME
tty - print the file name of the terminal connected to standard inputSYNOPSIS
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
AUTHOR
Written by David MacKenzie.REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.COPYRIGHT
Copyright © 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl>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 tty
should give you access to the complete manual.
Index
This document was created by man2html using the manual pages.
Time: 00:22:10 GMT, November 20, 2008
2. tty.4.man
Manpage of TTY
TTY
Section: Linux Programmer's Manual (4)Updated: 2003-04-07
Index Return to Main Contents
NAME
tty - controlling terminalDESCRIPTION
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 synonym 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 only works 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/ttySEE 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 2.78 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/.
Index
This document was created by man2html using the manual pages.
Time: 00:22:10 GMT, November 20, 2008
