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Preview
Variable Substitution Provides a Convenient Shorthand
Command Substitution Offers Flexibility and Convenience
Grouping Elements and Controlling Interpretation
Documenting Scripts with Comments
Convenience Variables
Measuring and Counting with Expressions
Operating on Lists
Controlling Scripts
Creating Commands Dynamically
Reading Other Files as dcecp Scripts
Creating New Commands
String Manipulation
Dealing with Errors and Exceptions
Working With Files
Spawning Subprocesses
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