12-01-2008
Quote:
Originally Posted by
vilius
Hi,
What is the diference between these two ?
thanks
Vilius
tty usually means a serial port device file in AIX, like Zaxxon said, you normally can found something like /dev/tty0 or /dev/tty1. A tty device can be config as a rs-232 port, rs-485 port, or asyn device. It's also can be define as a console port.
console is concept of control terminal. could be a physical device or just a logical term. Physically, in most UNIX, you can define a console via a serial port like one of tty and connect a software or hardware terminal to control a station, or use your video card, in Power System you can use a HMC. Also you can define a logical console in software to redirect your in put output information.
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LEARN ABOUT SUSE
setconsole
SHOWCONSOLE(8) The SuSE boot concept SHOWCONSOLE(8)
NAME
Showconsole - determines the underlying tty of stdin
Setconsole - sets the underlying tty of /dev/console
SYNOPSIS
showconsole [-n]
setconsole /dev/tty<xy> < /dev/console
DESCRIPTION
showconsole determines the underlying character device of the current stdin. This can be used on /dev/console as current character device
to get the real character device back.
setconsole sets the underlying tty of the system console /dev/console. This requires that the standard input is identical with /dev/con-
sole and exactly one argument, a valid character device is given.
OPTIONS
-n Return the major and minor device numbers instead of the device file name. This can be used to asked the kernel for the major and
minor device numbers of a not existing device file in /dev.
BUGS
showconsole needs a mounted /proc file system and tries to set the controlling tty to stdin if no controlling tty is found. After reading
/proc the status of the controlling tty is restored to avoid problems with getty processes.
FILES
/proc/<pid of showconsole>/stat
the stat file of the showconsole process.
/dev/console
the system console.
SEE ALSO
blogd(8), console(4), tty(4), proc(5).
COPYRIGHT
2000 Werner Fink, 2000 SuSE GmbH Nuernberg, Germany.
AUTHOR
Werner Fink <werner@suse.de>
3rd Berkeley Distribution Nov 10, 2000 SHOWCONSOLE(8)