The agetty command is a daemon that is used to manage virtual terminals on Linux systems. It is responsible for reading input from the terminal and sending it to the appropriate process.
The agetty command can be configured using the /etc/default/agetty file. This file contains a list of options that can be used to configure the agetty daemon. Some of the most commonly used options in the /etc/default/agetty file are:
help
Usage:
agetty [options] <line> [<baud_rate>,...] [<termtype>]
agetty [options] <baud_rate>,... <line> [<termtype>]
Open a terminal and set its mode.
Options:
-8, --8bits assume 8-bit tty
-a, --autologin <user> login the specified user automatically
-c, --noreset do not reset control mode
-E, --remote use -r <hostname> for login(1)
-f, --issue-file <list> display issue files or directories
--show-issue display issue file and exit
-h, --flow-control enable hardware flow control
-H, --host <hostname> specify login host
-i, --noissue do not display issue file
-I, --init-string <string> set init string
-J --noclear do not clear the screen before prompt
-l, --login-program <file> specify login program
-L, --local-line[=<mode>] control the local line flag
-m, --extract-baud extract baud rate during connect
-n, --skip-login do not prompt for login
-N --nonewline do not print a newline before issue
-o, --login-options <opts> options that are passed to login
-p, --login-pause wait for any key before the login
-r, --chroot <dir> change root to the directory
-R, --hangup do virtually hangup on the tty
-s, --keep-baud try to keep baud rate after break
-t, --timeout <number> login process timeout
-U, --detect-case detect uppercase terminal
-w, --wait-cr wait carriage-return
--nohints do not print hints
--nohostname no hostname at all will be shown
--long-hostname show full qualified hostname
--erase-chars <string> additional backspace chars
--kill-chars <string> additional kill chars
--chdir <directory> chdir before the login
--delay <number> sleep seconds before prompt
--nice <number> run login with this priority
--reload reload prompts on running agetty instances
--list-speeds display supported baud rates
--help display this help
--version display version
For more details see agetty(8).