login(1) — UTek W2.3



LOGIN(1)                COMMAND REFERENCE                LOGIN(1)



NAME
     login - sign on

SYNOPSIS
     login [ username ]

DESCRIPTION
     The login command is used at the beginning of each terminal
     session and allows the user to identify himself to the
     system.  It may be invoked by the user as a command, or by
     the system when a connection is first established.  Also, it
     is invoked by the system when a previous user has terminated
     the initial shell by typing end-of-file.

     If login is invoked without the argument username, it asks
     for a user name, and, if appropriate, a password.  Echoing
     is turned off (if possible) during the typing of the
     password, so it will not appear on the written record of the
     session.

     If a user does not complete the login successfully within a
     certain period of time (e.g., one minute), he is likely to
     be silently disconnected.

     After a successful login, accounting files are updated, the
     user is informed of the existence of mail, and the message
     of the day and the time of the user's last login is printed.
     This output to the user is suppressed if a file named
     .hushlogin is in the user's home directory.  (This feature
     is mostly used to make life easier for non-human users, such
     as uucp.)

     Login initializes the user and group IDs and the working
     directory, then executes a command interpreter (usually
     sh(1sh) or csh(1csh)) according to specifications found in a
     password file.  Argument 0 of the command interpreter is the
     name of the command interpreter with a leading dash ("-")
     prepended.

     Login also initializes the basic environment (see
     environ(7)) with information specifying home directory,
     command interpreter, command search path, terminal type (if
     available), user name and mail directory.  The environment
     is initialized to:

          HOME=your-login-directory
          SHELL=last-field-of-passwd-entry
          PATH=:/bin:/usr/bin
          TERM=first-field-of-ttytype-entry






Printed 10/17/86                                                1



LOGIN(1)                COMMAND REFERENCE                LOGIN(1)



     If the file /etc/nologin exists login prints its contents on
     the user's terminal and exits. This is used by shutdown(8)
     to stop users logging in when the system is about to go
     down.

     Login is recognized by sh(1sh) and csh(1csh) and executed
     directly (without forking).

FILES
     /etc/utmp                accounting

     /usr/adm/wtmp            accounting

     /usr/adm/lastlog         accounting

     /usr/spool/mail/*        mail

     /etc/motd                message-of-the-day

     /etc/passwd              password file

     /etc/ttytype             ttytype file

     /etc/nologin             stops logins

     .hushlogin               makes login quieter

     /etc/securetty           lists ttys that root may log in on

DIAGNOSTICS
     Login incorrect
         The name or the password is bad.

     No Shell  No directory
         The /etc/passwd entry is not set up correctly for this
         user, and there may be no home directory as well.  See a
         system administrator.

RETURN VALUE
     [NO_ERRS]      Command completed without error.

     [NP_WARN]      An error warranting a warning message
                    occurred. Execution continues.

     [P_WARN]       A system error occurred. Execution continues.
                    See intro(2) for more information on system
                    errors.

CAVEATS
     An undocumented option, -r is used by the remote login
     server, rlogind(8n) to force login to enter into an initial
     connection protocol.



Printed 10/17/86                                                2



LOGIN(1)                COMMAND REFERENCE                LOGIN(1)



SEE ALSO
     mail(1mh), passwd(1), passwd(5), environ(7), init(8),
     getty(8), shutdown(8).




















































Printed 10/17/86                                                3

%%index%%
na:72,51;
sy:123,112;
de:235,2365;2744,422;
fi:3166,698;
di:3864,414;
rv:4278,414;
ca:4692,261;
se:5097,285;
%%index%%000000000142

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