| [9] | 1 | .TH TTYTAB
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| 2 | .SH NAME
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| 3 | ttytab \- table of login terminals
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| 4 | .SH SYNOPSIS
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| 5 | .B /etc/ttytab
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| 6 | .SH DESCRIPTION
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| 7 | .de SP
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| 8 | .if t .sp 0.4
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| 9 | .if n .sp
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| 10 | ..
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| 11 | The
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| 12 | .B ttytab
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| 13 | file lists all the terminal devices that one can login on. It is a simple
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| 14 | text file that contains lines of the form:
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| 15 | .PP
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| 16 | .RS
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| 17 | .ft I
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| 18 | .ta +\w'namennn'u +\w'typennn'u +\w'"getty"nnn'u
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| 19 | name type "getty" "init"
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| 20 | .DT
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| 21 | .ft R
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| 22 | .RE
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| 23 | .PP
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| 24 | The
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| 25 | .I name
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| 26 | and
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| 27 | .I type
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| 28 | fields are simple words,
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| 29 | .I name
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| 30 | is the name of the terminal device with
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| 31 | .B /dev
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| 32 | stripped off, and
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| 33 | .I type
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| 34 | tells the type of terminal to initialize the
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| 35 | .B TERM
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| 36 | environment variable.
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| 37 | .PP
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| 38 | The
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| 39 | .I getty
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| 40 | and
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| 41 | .I init
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| 42 | fields may name commands that are run to allow one to login on the line, or
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| 43 | to initialize the line. Both these fields may be more than one word if
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| 44 | the whole field is enclosed in double quotes.
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| 45 | .I Getty
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| 46 | is usually simply the word
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| 47 | .BR getty ,
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| 48 | the command that prints a system identification banner and allows on to type
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| 49 | a name to log in.
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| 50 | .I Init
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| 51 | is usually an
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| 52 | .B stty
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| 53 | command to set the baud rate and parity of a serial line.
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| 54 | .PP
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| 55 | The
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| 56 | .I init
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| 57 | field may be omitted to indicate that no initialization is necessary, and the
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| 58 | .I getty
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| 59 | field may be left out to not start a login process. Terminals should not be
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| 60 | left out, because their place in the
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| 61 | .B ttytab
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| 62 | file determines their slot number as returned by
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| 63 | .BR ttyslot (3).
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| 64 | .PP
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| 65 | Comments (introduced by #) and empty lines are ignored.
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| 66 | .SH EXAMPLE
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| 67 | A
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| 68 | .B ttytab
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| 69 | for the console, two serial lines, and a pseudo tty entry:
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| 70 | .PP
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| 71 | .RS
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| 72 | .nf
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| 73 | .ta +\w'consolennn'u +\w'networknnn'u +\w'gettynnnn'u
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| 74 | console minix getty
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| 75 | tty00 vt100 getty "stty 9600"
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| 76 | tty01 dialup getty "stty 38400"
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| 77 | ttyp0 network
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| 78 | .DT
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| 79 | .fi
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| 80 | .RE
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| 81 | .SH ENVIRONMENT
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| 82 | .TP 15n
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| 83 | .B TERM
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| 84 | Terminal type
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| 85 | .SH NOTES
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| 86 | It is customary to set the type to
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| 87 | .B dialup
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| 88 | for a dialin line. One can check for that name in one's
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| 89 | .BR .profile .
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| 90 | .SH "SEE ALSO"
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| 91 | .BR getttyent (3),
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| 92 | .BR ttyslot (3),
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| 93 | .BR init (8).
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| 94 | .SH AUTHOR
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| 95 | Kees J. Bot (kjb@cs.vu.nl)
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