February 2019
Intermediate to advanced
626 pages
15h 51m
English
Content preview from Mastering Windows PowerShell Scripting - Third Edition
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Error actions
The ErrorAction parameter and the ErrorActionPreference variable are used to control what happens when a non-terminating error is written.
ErrorAction parameter requires CmdletBinding.The ErrorAction parameter is only available if a function declares the CmdletBinding attribute. CmdletBinding automatically added is if the Parameter attribute is used.
By default, ErrorAction is set to continue. Any non-terminating errors will be displayed, but a script or function will continue to run.
If ErrorAction is set to SilentlyContinue, errors will be added to the $error automatic variable, but the error won't be displayed.
The following function writes a non-terminating error using Write-Error:
function SilentError { [CmdletBinding()] ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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