GNU Emacs Lisp Reference Manual
The order of operations performed (in startup.el) by Emacs when it is started up is as follows:
before-init-hook.
-no-site-file was specified. The library's file name is usually
site-start.el.
-q was specified on
the command line. (This is not done in -batch mode.) The -u
option can specify the user name whose home directory should be used
instead of ~.
inhibit-default-init
is non-nil. (This is not done in -batch mode or if
-q was specified on the command line.) The library's file name
is usually default.el.
after-init-hook.
initial-major-mode, provided
the buffer *scratch* is still current and still in Fundamental
mode.
inhibit-startup-echo-area-message.
term-setup-hook.
frame-notice-user-settings, which modifies the
parameters of the selected frame according to whatever the init files
specify.
window-setup-hook. See Window Systems.
inhibit-startup-message is nil.
nil, then the messages are not printed.
This variable exists so you can set it in your personal init file, once you are familiar with the contents of the startup message. Do not set this variable in the init file of a new user, or in a way that affects more than one user, because that would prevent new users from receiving the information they are supposed to see.
(setq inhibit-startup-echo-area-message
"your-login-name")
Simply setting inhibit-startup-echo-area-message to your login
name is not sufficient to inhibit the message; Emacs explicitly checks
whether .emacs contains an expression as shown above. Your login
name must appear in the expression as a Lisp string constant.
This way, you can easily inhibit the message for yourself if you wish, but thoughtless copying of your .emacs file will not inhibit the message for someone else.