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tty

print the file name of the terminal connected to standard input


  1. tty.1.man
  2. tty.4.man


1. tty.1.man

Manpage of TTY

TTY

Section: User Commands (1)
Updated: October 2011
Index Return to Main Contents
 

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
 

AUTHOR

Written by David MacKenzie.  

REPORTING BUGS

Report tty bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report tty translation bugs to <http://translationproject.org/team/>  

COPYRIGHT

Copyright © 2011 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 coreutils aqtty invocationaq

should give you access to the complete manual.


 

Index

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO

This document was created by man2html using the manual pages.
Time: 17:32:51 GMT, October 23, 2013

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 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 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/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 3.32 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

NAME
DESCRIPTION
TIOCNOTTY
FILES
SEE ALSO
COLOPHON

This document was created by man2html using the manual pages.
Time: 17:32:51 GMT, October 23, 2013

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