Control Access and Scope of Variables and Other Items
1. Problem
You want to control how you define (or interact with) the visibility of variables, aliases, functions, and drives.
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Manage the Error Output of Commands
1. Problem
You want to display detailed information about errors that come from commands.
2. Solution
Store the Output of a Command into a File
1. Problem
You want to redirect the output of a pipeline into a file.
2. Solution
To redirect read more

