getty.tproj/ttys.5

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  32 .\"     from: @(#)ttys.5        8.1 (Berkeley) 6/4/93
  33 .\"     $Id: ttys.5,v 1.1.1.1 1999/05/02 04:21:29 wsanchez Exp $
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  35 .Dd June 4, 1993
  36 .Dt TTYS 5
  37 .Os
  38 .Sh NAME
  39 .Nm ttys
  40 .Nd terminal initialization information
  41 .Sh DESCRIPTION
  42 The file
  43 .Nm ttys
  44 contains information that is used by various routines to initialize
  45 and control the use of terminal special files.
  46 This information is read with the
  47 .Xr getttyent 3
  48 library routines.
  49 There is one line in the
  50 .Nm ttys
  51 file per special device file.
  52 Fields are separated by tabs and/or spaces.
  53 Fields comprised of more than one word should be enclosed in double
  54 quotes (``"'').
  55 Blank lines and comments may appear anywhere in the file; comments
  56 are delimited by hash marks (``#'') and new lines.
  57 Any unspecified fields will default to null.
  58 .Pp
  59 The first field is the
  60 name of the terminal special file as it is found in
  61 .Pa /dev .
  62 .Pp
  63 The second field of the file is the command to execute for the line,
  64 usually
  65 .Xr getty 8 ,
  66 which initializes and opens the line, setting the speed, waiting for
  67 a user name and executing the
  68 .Xr login 1
  69 program.
  70 It can be, however, any desired command, for example
  71 the start up for a window system terminal emulator or some other
  72 daemon process, and can contain multiple words if quoted.
  73 .Pp
  74 The third field is the type of terminal usually connected to that
  75 tty line, normally the one found in the
  76 .Xr termcap 5
  77 data base file.
  78 The environment variable
  79 .Dv TERM
  80 is initialized with the value by
  81 either
  82 .Xr getty 8
  83 or
  84 .Xr login 1 .
  85 .Pp
  86 The remaining fields set flags in the
  87 .Fa ty_status
  88 entry (see
  89 .Xr getttyent 3 )
  90 or specify a window system process that
  91 .Xr init 8
  92 will maintain for the terminal line.
  93 .Pp
  94 As flag values, the strings ``on'' and ``off'' specify that
  95 .Xr init
  96 should (should not) execute the command given in the second field,
  97 while ``secure'' (if ``on'' is also specified) allows users with a
  98 uid of 0 to login on
  99 this line.
 100 The flags ``local'', ``rtscts'', ``mdmbuf'', and ``softcar''
 101 modify the default behaviour of the terminal line, and their actions
 102 are driver dependent.
 103 The ``local'' flag causes the driver to
 104 treat the line as if it locally connected.
 105 The ``rtscts'' flag
 106 instructs the driver to use RTS/CTS hardware flow control, if
 107 possible.
 108 The ``mdmbuf'' flag instructs the driver to use
 109 DTR/DCD flow control, if possible.
 110 The ``softcar'' flag causes the driver to ignore
 111 hardware carrier on the line.
 112 These flag fields should not be quoted.
 113 .Pp
 114 The string ``window='' may be followed by a quoted command
 115 string which
 116 .Xr init
 117 will execute
 118 .Em before
 119 starting the command specified by the second field.
 120 .Sh EXAMPLES
 121 .Bd -literal
 122 # root login on console at 1200 baud
 123 console "/usr/libexec/getty std.1200"   vt100   on secure
 124 # dialup at 1200 baud, no root logins
 125 ttyd0   "/usr/libexec/getty d1200"      dialup  on      # 555-1234
 126 # Mike's terminal: hp2621
 127 ttyh0   "/usr/libexec/getty std.9600"   hp2621-nl       on      # 457 Evans
 128 # John's terminal: vt100
 129 ttyh1   "/usr/libexec/getty std.9600"   vt100   on              # 459 Evans
 130 # terminal emulate/window system
 131 ttyv0   "/usr/new/xterm -L :0"          vs100   on window="/usr/new/Xvs100 0"
 132 # Network pseudo ttys -- don't enable getty
 133 ttyp0   none    network
 134 ttyp1   none    network off
 135 .Ed
 136 .Sh FILES
 137 .Bl -tag -width /etc/ttys -compact
 138 .It Pa /etc/ttys
 139 .El
 140 .Sh SEE ALSO
 141 .Xr login 1 ,
 142 .Xr getttyent 3 ,
 143 .Xr ttyslot 3 ,
 144 .Xr gettytab 5 ,
 145 .Xr termcap 5 ,
 146 .Xr getty 8 ,
 147 .Xr init 8 ,
 148 .Xr ttyflags 8
 149 .Sh HISTORY
 150 A
 151 .Nm
 152 file appeared in
 153 .At v6 .