Setting Default Environment Variables
To define environment variables permanently so that they are defined whenever you log on, click Start, right-click My Computer, and select Properties. Next, view the Advanced tab and click Environment Variables.Windows displays the dialog box.
The top part of the dialog box lets you define the default variables for your account. You can click New to add a new variable, or you can click Edit or Delete to modify an existing entry.
The lower part of the dialog box edits the default variables provided to all user accounts.These settings can only be edited by an Administrator account, and the settings can be overridden by user-specific entries.
Note: You can also modify the default environment variables with WSH scripts by modifying the Environment("system") and Environment("user") collections.
In this tutorial:
- The CMD Command-Line
- CMD Versus COMMAND
- Running CMD
- Opening a Command Prompt Window with Administrator Privileges
- CMD Options
- Disabling Command Extensions
- Command-Line Processing
- Console Program Input and Output
- Using the Console Window
- I/O Redirection and Pipes
- Copy and Paste in Command Prompt Windows
- Command Editing and the History List
- Name Completion
- Enabling Directory Name Completion
- Multiple Commands on One Line
- Grouping Commands with Parentheses
- Arguments, Commas, and Quotes
- Escaping Special Characters
- Configuring the CMD Program
- The Search Path
- Changing the Path
- Predefined and Virtual Environment Variables
- Setting Default Environment Variables
- Built-in Commands
- Extended Commands
- Listing Files with the Dir Command
- Paginating Long Listings
- Printing Directory Listings
- Sorting Listings
- Locating Alternate File Streams
- Setting Variables with the Set Command
- Conditional Processing with the if Command
- Scanning for Files with the for Command
- Using the for Command's Variable
- Processing Directories
- Numerical for Loop
- Getting More Information
