After several hundred times of logging into your Mac you may be tired of looking at the same old login screen. Maybe you’d like to have a customized login screen for your school or employer’s workstations. Forget the $10 programs that automate the process, we’ll show you how to customize the login screen entirely on your own, for free. It’s not as difficult as you might think, and it’s a fun way to personalize your Mac a bit more. Be sure to check out the screenshot below for an example of the results. read more . . .
you can change login window on terminal 9) Change The Login Picture If you get a bored of the space picture used on the login screen, you can change it with this little bit of code. Change the file location in the second half of the string to the exact file location of your chosen picture. defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture "/System/Library/CoreServices/Finder.app/Contents/Resources/vortex.png" http://www.mactricksandtips.com/2008/02/top-50-terminal-commands.html