ttys File Format ttys
Active terminal ports
The file /etc/ttys describes the terminals in the COHERENT sys-
tem, and states which should have a login process. The process
init reads this file when it brings up the system in multi-user
mode.
/etc/ttys contains one line for each terminal. If the first
character of this line is `1', logins are enabled; `0' indicates
an inactive port. The second character describes the line con-
trol: `r' indicates ``remote'' (modem control), `l' indicates
``local'' (no modem control required).
The third character is passed to /etc/getty to give speed and
other information about the terminal port. Speeds can be either
fixed, for use with terminals that are directly wired into the
host computer, or variable, for use with modems. The common
fixed-speed terminal types are as follows:
Type Baud
C 110
G 300
I 1200
L 2400
N 4800
P 9600
Q 19200
The common variable-speed codes terminal types are as follows:
0 300, 1200, 150, 110
3 2400, 1200, 300
The remainder of the line in file /etc/ttys is the name of the
special file for the terminal, normally found in the directory
/dev.
***** Files *****
/etc/ttys
***** See Also *****
file formats, getty, init, login, stty
COHERENT Lexicon Page 1