Get TTY or getty

getty program. init starts a separate instance of getty for each terminal upon which logins are to be allowed. getty reads the username and runs the  correct,  because the username and password didn't match, kernel has no notion of logins, this is all handled by the loginprogram, which reads the password. If the username and password arelogin runs the shell. When the shell terminates, i.e., the user logs out, or when login terminatedinit notices this and starts a new instance of getty. Thesystem programs.

Logins from terminals (via serial lines) and the console (when not running X) are provided by the