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login (1)
  • login (1) ( Solaris man: Команды и прикладные программы пользовательского уровня )
  • >> login (1) ( FreeBSD man: Команды и прикладные программы пользовательского уровня )
  • login (1) ( Русские man: Команды и прикладные программы пользовательского уровня )
  • login (1) ( Linux man: Команды и прикладные программы пользовательского уровня )
  • login (3) ( FreeBSD man: Библиотечные вызовы )
  • login (3) ( Русские man: Библиотечные вызовы )
  • login (3) ( Linux man: Библиотечные вызовы )
  • login (8) ( Русские man: Команды системного администрирования )
  • Ключ login обнаружен в базе ключевых слов.

  • BSD mandoc


     - log into the computer


    [-fp ] [-h hostname ] [user ]  


    The utility logs users (and pseudo-users) into the computer system.

    If no user is specified, or if a user is specified and authentication of the user fails, prompts for a user name. Authentication of users is configurable via pam(8). Password authentication is the default.

    The following options are available:

    When a user name is specified, this option indicates that proper authentication has already been done and that no password need be requested. This option may only be used by the super-user or when an already logged in user is logging in as themselves.
    Specify the host from which the connection was received. It is used by various daemons such as telnetd(8). This option may only be used by the super-user.
    By default, discards any previous environment. The -p option disables this behavior.

    Login access can be controlled via login.access5 or the login class in login.conf5, which provides allow and deny records based on time, tty and remote host name.

    If the file /etc/fbtab exists, changes the protection and ownership of certain devices specified in this file.

    Immediately after logging a user in, displays the system copyright notice, the date and time the user last logged in, the message of the day as well as other information. If the file .hushlogin exists in the user's home directory, all of these messages are suppressed. This is to simplify logins for non-human users, such as uucp(1).

    The utility enters information into the environment (see environ(7)) specifying the user's home directory (HOME), command interpreter (SHELL), search path (PATH), terminal type (TERM) and user name (both LOGNAME and USER). Other environment variables may be set due to entries in the login class capabilities database, for the login class assigned in the user's system passwd record. The login class also controls the maximum and current process resource limits granted to a login, process priorities and many other aspects of a user's login environment.

    Some shells may provide a builtin command which is similar or identical to this utility. Consult the builtin(1) manual page.

    The utility will submit an audit record when login succeeds or fails. Failure to determine the current auditing state will result in an error exit from .  


    changes device protections
    login class capabilities database
    system mailboxes
    makes login quieter
    configure authentication services
    pam(8) configuration file
    user flags for auditing
    global flags for auditing



    builtin(1), chpass(1), csh(1), newgrp(1), passwd(1), rlogin(1), getpass(3), fbtab(5), login.access5, login.conf5, environ(7)  


    A utility appeared in AT&T System v6 .




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