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1.1 root 1: .\" Copyright (c) 1985 The Regents of the University of California.
2: .\" All rights reserved.
3: .\"
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14: .\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
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18: .\" @(#)ttys.5 6.7 (Berkeley) 6/23/90
19: .\"
20: .TH TTYS 5 "June 23, 1990"
21: .AT 3
22: .SH NAME
23: ttys \- terminal initialization data
24: .SH DESCRIPTION
25: The
26: .I ttys
27: file contains information that is used by various routines to initialize
28: and control the use of terminal special files.
29: This information is read with the
30: .IR getttyent (3)
31: library routines.
32: There is one line in the
33: .I ttys
34: file per special file.
35: Fields are separated by tabs and/or spaces.
36: Fields comprised of more than one word should be enclosed in double
37: quotes (``"'').
38: Blank lines and comments may appear anywhere in the file; comments
39: are delimited by hash marks (``#'') and new lines.
40: Any unspecified fields will default to null.
41: .PP
42: The first field is the terminal's entry in the device directory, ``/dev''.
43: .PP
44: The second field of the file is the command to execute for the line,
45: typically
46: .IR getty (8),
47: which performs such tasks as baud-rate recognition, reading the login name,
48: and calling
49: .IR login (1).
50: It can be, however, any desired command, for example
51: the start up for a window system terminal emulator or some other
52: daemon process, and can contain multiple words if quoted.
53: .PP
54: The third field is the type of terminal usually connected to that
55: tty line, normally the one found in the
56: .IR termcap (5)
57: data base file.
58: The environmental variable ``TERM'' is initialized with the value by
59: either
60: .IR getty (8)
61: or
62: .IR login (1).
63: .PP
64: The remaining fields set flags in the
65: .I ty_status
66: entry (see
67: .IR getttyent (3))
68: or specify a window system process that
69: .IR init (8)
70: will maintain for the terminal line.
71: .PP
72: As flag values, the strings ``on'' and ``off'' specify that
73: .I init
74: should (should not) execute the command given in the second field,
75: while ``secure'' (if ``on'' is also specified) allows users with a
76: uid of 0 to login on
77: this line.
78: These flag fields should not be quoted.
79: .PP
80: The string ``window='' may be followed by a quoted command
81: string which
82: .I init
83: will execute
84: .B before
85: starting the command specified by the second field.
86: .SH EXAMPLES
87: .nf
88: # root login on console at 1200 baud
89: console "/usr/libexec/getty std.1200" vt100 on secure
90: # dialup at 1200 baud, no root logins
91: ttyd0 "/usr/libexec/getty d1200" dialup on # 555-1234
92: # Mike's terminal: hp2621
93: ttyh0 "/usr/libexec/getty std.9600" hp2621-nl on # 457 Evans
94: # John's terminal: vt100
95: ttyh1 "/usr/libexec/getty std.9600" vt100 on # 459 Evans
96: # terminal emulate/window system
97: ttyv0 "/usr/new/xterm -L :0" vs100 on window="/usr/new/Xvs100 0"
98: # Network pseudo ttys -- don't enable getty
99: ttyp0 none network
100: ttyp1 none network off
101: .fi
102: .SH FILES
103: /etc/ttys
104: .SH "SEE ALSO"
105: login(1), getttyent(3), ttyslot(3), gettytab(5), termcap(5), getty(8), init(8)
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