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gettydefs(4)
NAME
  gettydefs - Terminal attributes

SYNOPSIS
  /etc/gettydefs

DESCRIPTION
  The gettydefs file supplies the getty command with information about
  various terminal attributes, such as the default initialization and the
  login message. The gettydefs file contains single line entries that are
  separated by blank lines.   Each entry contains five fields; each field is
  separated by a number sign (#). You can indicate comments in the file by
  putting a number sign (#) at the beginning of a line.

  When the getty command is invoked, it scans the gettydefs file for the
  first entry with a matching identifier field (see below). If the gettydefs
  file cannot be opened, internal default settings are used.   If a match is
  found, then the matching entry is parsed, and the terminal attributes are
  set based on the fields specified in the entry.  If a match is not found,
  the first gettydefs file entry is used; therefore the first entry in
  gettydefs must be the default entry.	The maximum length of each entry is
  255 characters.

  The format of each entry is as follows:

       Identifier#Iflag#Fflag#Message#Next Identifier

  Identifier
      Identifies an entry.  The getty command uses an identifier as an
      argument and searches for the first entry with a matching identifier
      field. The identifier must be unique.

  Iflag
      Specifies the initial terminal flags that the getty command uses to set
      the terminal attributes after a line has been successfully opened.
      There are four categories for the terminal attributes.  The input flags
      control the basic input attributes.  The output flags control how the
      terminal system processes output.	 The control flags describe how the
      hardware controls the terminal.  The local flags control various
      terminal functions.  Refer to termios(4) for the description of the
      possible settings on a terminal port.  You can specify the symbol SANE
      to select default settings. The default settings set the input flags to
      BRKINT, IGNPAR, ICRNL and IXON; the output flags to OPOST and ONLCR;
      the control flags to CS8, and CREAD; and the local flags to ISIG,
      ICANON, IEXTEN, ECHO, ECHOK.

  Fflag
      Specifies the final terminal flags used by the getty command. These
      flags are set after the getty command receives a valid login name from
      the standard input. The output flags and the control flags are set to
      the terminal attributes specified in Fflag. The input flags and local
      flags are appended to the initial flags specified in the Iflag field.

  Message
      Specifies the login message.  The login message can include the
      character sequence %h to obtain the host name and %t to obtain the
      terminal name. This field is limited to 79 characters.

  Next Identifier
      Specifies that if the speed specified in the current entry was
      incorrect, the entry corresponding to this field should be used. The
      getty command obtains the new entry from this field, and the scan
      process is repeated.

EXAMPLES
  The following is an example of an entry in the gettydefs file containing
  settings for an 8 bit, no parity, 9600 baud, locally connected terminal
  line:

       9600# B9600 HUPCL CS8 CLOCAL # B9600 SANE IXANY TAB3 CLOCAL #login: #9600

  The following is an example of an entry in the gettydefs file containing
  settings for a 8 bit, no parity, 2400 baud, dial in modem line:

       M2400# B2400 HUPCL CS8 # B2400 SANE IXANY TAB3 HUPCL #login: #M1200

FILES
  /usr/include/sys/termios.h

  /usr/sbin/getty
      Specifies the command that initializes and controls terminal lines.

SEE ALSO
  Commands: getty(8)

  Functions: kill(2)

Index for Section 4

Alphabetical listing for G

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