gettydefs(4)						     Kernel Interfaces Manual						      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 ter-
       minal 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

       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.  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 ter-
       minal 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.  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.  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.
       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

       Specifies the command that initializes and controls terminal lines.

RELATED INFORMATION

       Commands: getty(8)

       Functions:  kill(2) delim off

																      gettydefs(4)