GETTY(8) Maintenance Commands and Procedures GETTY(8)

NAME

getty - set terminal type, modes, speed, and line discipline

SYNOPSIS

/usr/lib/saf/ttymon [-h] [-t timeout] line
[speed [type [linedisc]]]


/usr/lib/saf/ttymon -c file

DESCRIPTION

getty sets terminal type, modes, speed, and line discipline. getty is
a symbolic link to /usr/lib/saf/ttymon. It is included for
compatibility with previous releases for the few applications that
still call getty directly.


getty can only be executed by the super-user, (a process with the
user ID root). Initially getty prints the login prompt, waits for the
user's login name, and then invokes the login command. getty attempts
to adapt the system to the terminal speed by using the options and
arguments specified on the command line.


Without optional arguments, getty specifies the following: The speed
of the interface is set to 300 baud, either parity is allowed,
NEWLINE characters are converted to carriage return-line feed, and
tab expansion is performed on the standard output. getty types the
login prompt before reading the user's name a character at a time. If
a null character (or framing error) is received, it is assumed to be
the result of the user pressing the BREAK key. This will cause getty
to attempt the next speed in the series. The series that getty tries
is determined by what it finds in /etc/ttydefs .

OPTIONS

The following options are supported:

-h
If the -h flag is not set, a hangup will be forced by
setting the speed to zero before setting the speed to
the default or a specified speed.


-t timeout
Specifies that getty should exit if the open on the
line succeeds and no one types anything in timeout
seconds.


-c file
The -c option is no longer supported. Instead use
/usr/sbin/sttydefs -l to list the contents of the
/etc/ttydefs file and perform a validity check on the
file.

OPERANDS

The following operands are supported:

line
The name of a TTY line in /dev to which getty
is to attach itself. getty uses this string as
the name of a file in the /dev directory to open
for reading and writing.


speed
The speed argument is a label to a speed and
TTY definition in the file /etc/ttydefs. This
definition tells getty at what speed to run
initially, what the initial TTY settings are,
and what speed to try next, (should the user
press the BREAK key to indicate that the speed
is inappropriate). The default speed is 300
baud.


type and linedisc
These options are obsolete and will be ignored.

FILES

/etc/ttydefs

SEE ALSO

login(1), ct(1C), ioctl(2), tty(4D), attributes(7), sttydefs(8),
ttymon(8)

September 14, 1992 GETTY(8)