You're reading from Mastering PowerShell Scripting - Fourth Edition

Product typeBook

Published inJun 2021

PublisherPackt

ISBN-139781800206540

Edition4th Edition

Tools

Windows Server

Concepts

System Administration

Author (1)

Chris Dent

Error actions

The -ErrorAction parameter and the ErrorActionPreference variable are used to control what happens when a non-terminating error is encountered, subject to the previous notes about throw.

The -ErrorAction parameter is made available on a command when the CmdletBinding attribute is present. The CmdletBinding attribute is implicitly added if one or more parameters in a script use the Parameter attribute.

By default, -ErrorAction is set to Continue. Non-terminating errors will be displayed, but a script will continue to run.

$ErrorActionPreference is a scoped variable, which you can use to affect all commands in a particular scope and any child scopes. By default, $ErrorActionPreference is set to Continue. You can override the variable in child scopes (such as a function inside a script).

All errors in a session are implicitly added to the reserved variable $Error unless the error action is set to Ignore. Now, $Error is an ArrayList and contains...

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Mastering PowerShell Scripting - Fourth Edition

Published in: Jun 2021Publisher: PacktISBN-13: 9781800206540

Author (1)

Chris Dent

Chris Dent is an automation specialist with deep expertise in the PowerShell language. Chris is often found answering questions about PowerShell in both the UK and virtual PowerShell user groups. Chris has been developing in PowerShell since 2007 and has released several modules over the years.
Read more about Chris Dent

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