On Error Resume Next Powershell
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your account only takes a few minutes. Join Now Hey all, i am looking for the equivalent to the vbscript on error resume next for powershell here is my for loop its reading a on error resume next vba list of programs and running through them to uninstall but some computers have some and
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some dont so i when it errors on that i want it to continue through the ps1 script. foreach ($compname in $component){ $app on error resume next vbscript = Get-WmiObject -ComputerName $strComputer -Credential $cred -Class Win32_Product | Where-Object{ $_.Name -match $compname } $app.uninstall() } Thanks Reply Subscribe View Best Answer RELATED TOPICS: Powershell If Statement Error   2 Replies
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Mace OP Best Answer Martin9700 Aug 5, 2010 at 2:23 UTC $ErrorActionPreference = "SilentlyContinue" At it's most basic. But you can also create Trap functions where look pretty interesting. Here's a good write-up: http://huddledmasses.org/trap-exception-in-powershell/ 1 Thai Pepper OP Kyle R Aug 5, 2010 at 3:16 UTC hey thanks for the reply i did look at that $ErrorActionPreference earlier and it wasn't working for my script but setting up a trap on error resume next vb6 did thanks for the info! 0 This discussion has been inactive for over a year. You may get a better answer to your question by starting a new discussion. Text Quote Post |Replace Attachment Add link Text to display: Where should this link go? Add Cancel × Insert code Language Apache AppleScript Awk BASH Batchfile C C++ C# CSS ERB HTML Java JavaScript Lua ObjectiveC PHP Perl Text Powershell Python R Ruby Sass Scala SQL VB.net Vimscript XML YAML Insert Cancel Join me to this group Reply × Users who spiced this post Read these next... © Copyright 2006-2016 Spiceworks Inc. About Advertising Privacy Terms Help Sitemap × Join millions of IT pros like you Log in to Spiceworks Reset community password Agree to Terms of Service Connect with Or Sign up with your email address First Name Last Name Email Join Now or Log In Email Password Log In Forgot your password? Email Reset Password Cancel Need to recover your Spiceworks IT Desktop password? By creating an account, you're agreeing to our Terms of Use, Privacy Policy and to receive emails from Spiceworks. By creating an account, you're agreeing to our Terms of Use and our Privacy Policy Not a member? Join the community Back I agree Powerful tools you need, all for free. Help Desk » Inventory » Monitor » Community »
functions. The next area where Powershell suprises new users is in its approach to error handling. Fortunately, there are some useful workarounds
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for making the surprising default behavior work more like you would expect.
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While learning Powershell, I was trying to create a deployment script. The script needed to perform several on error resume next vbscript example tasks including, copying the deployment package to the target machine, setting up services, and the like. While testing it out locally, I would deliberately cause certain steps to fail in order https://community.spiceworks.com/topic/106857-powershell-equivalent-to-on-error-resume-next to ensure that the user of the script would be clearly alerted to failures. To my surprise, when I caused exceptions to be thrown, the script would happily continue on to the next step, ultimately printing a success message to the user. Consider this example: What the heck just happened? If you can't rely on uncaught exceptions to stop http://patrick.lioi.net/2011/08/16/avoiding-on-error-resume-next-when-using-powershell/ execution, how can you reliably deal with failures? What if we throw an exception and then blindly move along to a subsequent step that depends on the success of previous steps? Powershell reintroduces VB's "ON ERROR RESUME NEXT", but goes one step further by making it the default! Abandon all hope, ye who etc, etc. To make Powershell error handling work more like error handling in other .NET languages, we can set $global:ErrorActionPreference = "Stop" at the start of our script. With this variable set, uncaught exceptions thrown by Powershell code will cause the whole script to stop. Altering our example with this line, we get the output that we originally expected: This solves most of our problem: the behavior of Powershell code that throws errors. Unfortunately, it doesn't help us when we invoke an external executable that fails in the middle of our script. In my next post, I'll show you how to address the failure of external executables. @plioi :: archive :: fixie :: parsley :: rook © 2011-2013 Patrick Lioi
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings http://stackoverflow.com/questions/16229582/continue-execution-on-exception and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it on error only takes a minute: Sign up Continue execution on Exception up vote 1 down vote favorite Below is the script I want to execute. The issue here is once an exception occurs it stops executing, I used continue in the catch block but that did not work. How do I get it working even after an exception occurs it should loop on error resume in foreach. I also used a while($true) loop but that went into infinite loop. How to go about it? $ErrorActionPreference = "Stop"; try { # Loop through each of the users in the site foreach($user in $users) { # Create an array that will be used to split the user name from the domain/membership provider $a=@() $displayname = $user.DisplayName $userlogin = $user.UserLogin # Separate the user name from the domain/membership provider if($userlogin.Contains('\')) { $a = $userlogin.split("\") $username = $a[1] } elseif($userlogin.Contains(':')) { $a = $userlogin.split(":") $username = $a[1] } # Create the new username based on the given input $newalias = $newprovider + "\" + $username if (-not $convert) { $answer = Read-Host "Your first user will be changed from $userlogin to $newalias. Would you like to continue processing all users? [Y]es, [N]o" switch ($answer) { "Y" {$convert = $true} "y" {$convert = $true} default {exit} } } if(($userlogin -like "$oldprovider*") -and $convert) { LogWrite ("Migrating User old : " + $user + " New user : " + $newalias + " ") move-spuser -identity $user -newalias $newalias -ignores