96 lines
1.9 KiB
Groff
96 lines
1.9 KiB
Groff
.TH TTYTAB
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.SH NAME
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ttytab \- table of login terminals
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.SH SYNOPSIS
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.B /etc/ttytab
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.SH DESCRIPTION
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.de SP
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.if t .sp 0.4
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.if n .sp
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..
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The
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.B ttytab
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file lists all the terminal devices that one can login on. It is a simple
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text file that contains lines of the form:
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.PP
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.RS
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.ft I
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.ta +\w'namennn'u +\w'typennn'u +\w'"getty"nnn'u
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name type "getty" "init"
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.DT
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.ft R
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.RE
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.PP
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The
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.I name
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and
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.I type
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fields are simple words,
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.I name
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is the name of the terminal device with
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.B /dev
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stripped off, and
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.I type
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tells the type of terminal to initialize the
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.B TERM
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environment variable.
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.PP
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The
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.I getty
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and
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.I init
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fields may name commands that are run to allow one to login on the line, or
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to initialize the line. Both these fields may be more than one word if
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the whole field is enclosed in double quotes.
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.I Getty
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is usually simply the word
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.BR getty ,
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the command that prints a system identification banner and allows on to type
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a name to log in.
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.I Init
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is usually an
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.B stty
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command to set the baud rate and parity of a serial line.
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.PP
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The
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.I init
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field may be omitted to indicate that no initialization is necessary, and the
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.I getty
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field may be left out to not start a login process. Terminals should not be
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left out, because their place in the
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.B ttytab
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file determines their slot number as returned by
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.BR ttyslot (3).
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.PP
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Comments (introduced by #) and empty lines are ignored.
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.SH EXAMPLE
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A
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.B ttytab
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for the console, two serial lines, and a pseudo tty entry:
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.PP
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.RS
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.nf
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.ta +\w'consolennn'u +\w'networknnn'u +\w'gettynnnn'u
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console minix getty
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tty00 vt100 getty "stty 9600"
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tty01 dialup getty "stty 38400"
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ttyp0 network
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.DT
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.fi
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.RE
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.SH ENVIRONMENT
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.TP 15n
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.B TERM
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Terminal type
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.SH NOTES
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It is customary to set the type to
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.B dialup
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for a dialin line. One can check for that name in one's
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.BR .profile .
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.SH "SEE ALSO"
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.BR getttyent (3),
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.BR ttyslot (3),
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.BR init (8).
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.SH AUTHOR
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Kees J. Bot (kjb@cs.vu.nl)
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