[unix-history] / usr / man / man5 / ttys.5

.TH TTYS 5  "18 July 1983"
.SH NAME
ttys \- terminal initialization data
.SH DESCRIPTION
The
.I ttys
file is read by the
.I init
program and specifies which terminal special files are to have
a process created for them so that people can log in.
There is one line in the 
.I ttys
file per special file.
.PP
The first character of a line in the 
.I ttys
file is either `0' or `1'.  If the first character on the line is a `0', the 
.I init
program ignores that line.  If the first character on the line is a `1', the
.I init
program creates a login process for that line.
The second character on each line is used as an argument to
.IR getty (8),
which performs such tasks as baud-rate recognition, reading the login name,
and calling
.I login.
For normal lines, the character is `0';
other characters can be used, for example, with hard-wired terminals
where speed recognition is unnecessary or which have special characteristics.
.RI ( Getty
will have to be fixed in such cases.)
The remainder of the line is the terminal's entry in the device directory, /dev.
.SH FILES
/etc/ttys
.SH "SEE ALSO"
gettytab(5), init(8), getty(8), login(1)
Commit	Line	Data
79affad0 C	1	.TH TTYS 5 "18 July 1983"
	2	.SH NAME
	3	ttys \- terminal initialization data
	4	.SH DESCRIPTION
	5	The
	6	.I ttys
	7	file is read by the
	8	.I init
	9	program and specifies which terminal special files are to have
	10	a process created for them so that people can log in.
	11	There is one line in the
	12	.I ttys
	13	file per special file.
	14	.PP
	15	The first character of a line in the
	16	.I ttys
	17	file is either `0' or `1'. If the first character on the line is a `0', the
	18	.I init
	19	program ignores that line. If the first character on the line is a `1', the
	20	.I init
	21	program creates a login process for that line.
	22	The second character on each line is used as an argument to
	23	.IR getty (8),
	24	which performs such tasks as baud-rate recognition, reading the login name,
	25	and calling
	26	.I login.
	27	For normal lines, the character is `0';
	28	other characters can be used, for example, with hard-wired terminals
	29	where speed recognition is unnecessary or which have special characteristics.
	30	.RI ( Getty
	31	will have to be fixed in such cases.)
	32	The remainder of the line is the terminal's entry in the device directory, /dev.
	33	.SH FILES
	34	/etc/ttys
	35	.SH "SEE ALSO"
	36	gettytab(5), init(8), getty(8), login(1)