Chapter 3. Command-Line Scripting Essentials
In a world dominated by whiz-bang graphical user interfaces, you may wonder what command-line scripting has to offer that Windows and point-and-click dialog boxes don't. Well, to be honest, the plain appearance of command-line scripting has more to offer than most people realize, especially considering that most people regard command-line scripts as glorified batch files—the kind you used on computers with 8088 processors and MS-DOS. Today's command-line scripting environment is an extensive programming environment, which includes the following:
Variables
Arithmetic expressions
Conditional statements
Control flow statements
Procedures
You can use these programming elements to automate repetitive tasks, perform ...
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