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Table Of Contents
Mastering PowerShell Scripting - Fifth Edition
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Parameters are used in PowerShell to accept arguments or user input for a command. Almost all commands accept parameters; there are only a few exceptions in the form of utility functions like those to change drive, such as the function c:.
PowerShell has an extensive parameter handling and validation system that can be used in scripts and functions. The system allows a developer to make parameters mandatory; to define what, if any, positional binding is allowed; to fill parameters from the pipeline; to describe different parameter sets; and to validate the values passed to a parameter. The wealth of options available makes parameter handling an incredibly involved subject.
This chapter explores the following topics:
Parameter attributeParameters in PowerShell can make use of the...