O'Reilly logo

Linux in a Nutshell, 6th Edition by Robert Love, Stephen Figgins, Ellen Siever, Arnold Robbins

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Name

login

Synopsis

login [name | option]

Log into the system. login asks for a username (name can be supplied on the command line) and password (if appropriate).

If successful, login updates accounting files, sets various environment variables, notifies users if they have mail, and executes startup shell files.

Only the root user can log in when /etc/nologin exists. That file is displayed before the connection is terminated. Furthermore, root may connect only on a tty that is listed in /etc/securetty. If ˜/.hushlogin exists, execute a quiet login. If /var/adm/lastlog exists, print the time of the last login.

Options

-f

Suppress second login authentication.

-h host

Specify name of remote host. Normally used by servers, not humans; may be used only by root.

-p

Preserve previous environment.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required