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Annotation of 43BSDTahoe/man/man5/ttys.5, revision 1.1.1.1

1.1       root        1: .\"    @(#)ttys.5      6.4 (Berkeley) 5/20/86
                      2: .\"
                      3: .TH TTYS 5  "May 20, 1986"
                      4: .AT 3
                      5: .SH NAME
                      6: ttys \- terminal initialization data
                      7: .SH DESCRIPTION
                      8: The
                      9: .I ttys
                     10: file contains information that is used by various routines to initialize
                     11: and control the use of terminal special files. This information is read
                     12: with the
                     13: .IR getttyent (3)
                     14: library routines.
                     15: There is one line in the 
                     16: .I ttys
                     17: file per special file.
                     18: Fields are separated by tabs and/or spaces.
                     19: Some fields may contain more than one word and should be enclosed
                     20: in double quotes.
                     21: Blank lines and comments can appear anywhere in the file; comments
                     22: are delimited by `#' and new line. Unspecified fields default to null.
                     23: The first field is the terminal's entry in the device directory, /dev.
                     24: The second field of the file is the command to execute for the line,
                     25: typically
                     26: .IR getty (8),
                     27: which performs such tasks as baud-rate recognition, reading the login name,
                     28: and calling
                     29: .IR login (1).
                     30: It can be, however, any desired command, for example
                     31: the start up for a window system terminal emulator or some other
                     32: daemon process, and can contain multiple words if quoted.
                     33: The third field is the type of terminal normally connected to that
                     34: tty line, as found in the
                     35: .IR termcap (5)
                     36: data base file.
                     37: The remaining fields set flags in the
                     38: .I ty_status
                     39: entry (see
                     40: .IR getttyent (3))
                     41: or specify a window system process that
                     42: .IR init (8)
                     43: will maintain for the terminal line.
                     44: As flag values,
                     45: the strings `on' and `off' specify whether
                     46: .I init
                     47: should execute the command
                     48: given in the second field,
                     49: while `secure' in addition to `on' allows root to login on
                     50: this line.  These flag fields should not be quoted.
                     51: The string `window=' is followed by a quoted command
                     52: string which
                     53: .I init
                     54: will execute before starting
                     55: .IR getty .
                     56: If the line ends in a comment, the comment is included in the
                     57: .I ty_comment
                     58: field of the ttyent structure.
                     59: .PP
                     60: Some examples:
                     61: .PP
                     62: .nf
                     63: .ta \w'console\ 'u +\w'"/etc/getty std.9600"\ \ \ 'u +\w'hp2621-nl\ \ \ \ 'u +.7i
                     64: console        "/etc/getty std.1200"   vt100   on secure
                     65: ttyd0  "/etc/getty d1200"      dialup  on      # 555-1234
                     66: ttyh0  "/etc/getty std.9600"   hp2621-nl       on      # 254MC
                     67: ttyh1  "/etc/getty std.9600"   plugboard       on      # John's office
                     68: ttyp0  none    network
                     69: ttyp1  none    network off
                     70: ttyv0  "/usr/new/xterm -L :0"  vs100   on window="/usr/new/Xvs100 0"
                     71: .fi
                     72: .PP
                     73: The first example permits root login on the console at 1200 baud,
                     74: the second allows dialup at 1200 baud without root login,
                     75: the third and fourth allow login at 9600 baud with terminal types of
                     76: "hp2621-nl" and "plugboard" respectively,
                     77: the fifth and sixth line are examples of network pseudo ttys, which
                     78: should not have
                     79: .I getty
                     80: enabled on them,
                     81: and the last example shows a terminal emulator and window system
                     82: startup entry.
                     83: .SH FILES
                     84: /etc/ttys
                     85: .SH "SEE ALSO"
                     86: login(1), getttyent(3), gettytab(5), init(8), getty(8)

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