How to Pin the Dock to the Left or Right in Mac OS X Leopard

You can move the Dock in Apple Mac OS X away from its permanently centered position with a very simple Terminal command, pinning the Dock to the left- or right-hand side of the screen.

Difficulty: Moderately Easy

Instructions

1. 
    
   Mac OS X Terminal Application

   Navigate to “Application/Utilities/ Terminal” and double-click the "Terminal application" to launch it.

2. 
    
   Terminal Command to Pin the Dock to the Left

   Enter the following command into the Terminal application to pin the Dock to the left-hand side of your screen. Hit "Enter" to complete the command:defaults write com.apple.dock pinning -string start

3. 
    
   Terminal Command to Pin the Dock to the Right

   Enter the following command into the Terminal application to pin the Dock to the right-hand side of your screen:defaults write com.apple.dock pinning -string end

4. 
    
   Terminal Command to Pin the Dock to the Middle

   To return the Dock to the Middle of the Desktop, enter the following command into the Terminal application to pin the Dock to the middle of your screen:defaults write com.apple.dock pinning -string middle