agetty

linux

Alternative `getty`: Open a `tty` port, prompt for a login name, and invoke the `/bin/login` command. It is normally invoked by `init`. Note: The baud rate is the speed of data transfer between a terminal and a device over a serial connection.

More info →

Options (7)

-t, --timeoutboolean

Assume `stdin` is already connected to a `tty` and set a timeout for the login

Example: agetty {{[-t|--timeout]}} {{timeout_in_seconds}} -

-8, --8bitsboolean

Assume the `tty` is 8-bit, overriding the `$TERM` environment variable set by `init`

Example: agetty {{[-8|--8bits]}} - {{term_var}}

-n, --skip-loginboolean

Skip the login (no login) and invoke, as root, another login program instead of `/bin/login`

Example: agetty {{[-n|--skip-login]}} {{[-l|--login-program]}} {{login_program}} {{tty}}

-l, --login-programboolean

Skip the login (no login) and invoke, as root, another login program instead of `/bin/login`

Example: agetty {{[-n|--skip-login]}} {{[-l|--login-program]}} {{login_program}} {{tty}}

-i, --noissueboolean

Do not display the pre-login (issue) file (`/etc/issue` by default) before writing the login prompt

Example: agetty {{[-i|--noissue]}} -

-r, --chrootboolean

Change the root directory and write a specific fake host into the `utmp` file

Example: agetty {{[-r|--chroot]}} /{{path/to/root_directory}} {{[-H|--host]}} {{fake_host}} -

-H, --hostboolean

Change the root directory and write a specific fake host into the `utmp` file

Example: agetty {{[-r|--chroot]}} /{{path/to/root_directory}} {{[-H|--host]}} {{fake_host}} -

Examples (6)

Connect `stdin` to a port (relative to `/dev`) and optionally specify a baud rate (defaults to 9600)

agetty tty 115200

Assume `stdin` is already connected to a `tty` and set a timeout for the login

agetty [-t|--timeout] timeout_in_seconds -

Assume the `tty` is 8-bit, overriding the `$TERM` environment variable set by `init`

agetty [-8|--8bits] - term_var

Skip the login (no login) and invoke, as root, another login program instead of `/bin/login`

agetty [-n|--skip-login] [-l|--login-program] login_program tty

Do not display the pre-login (issue) file (`/etc/issue` by default) before writing the login prompt

agetty [-i|--noissue] -

Change the root directory and write a specific fake host into the `utmp` file

agetty [-r|--chroot] /path/to/root_directory [-H|--host] fake_host -

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