Error Handling Powershell 1.0
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$File = "D:\Dev\somefilename.zip" $ftp = "ftp://username:password@example.com/pub/incoming/somefilename.zip"powershell exception-handling ftp powershell-v1.0 share|improve this question asked Aug 6 '10 at 0:35 Adam Lerman 1,54983049 add a comment| 2 Answers 2 active oldest votes up vote 3 down vote Drop the trap down into a new scope so that you trap on the exception thrown by Upload e.g.: $succeeded = $true; & { trap { $script:succeeded = $false; continue } $webclient.UploadFile($uri, $File) } if ($succeeded) { 'Yay!' } else { 'Doh!' } You could also try to catch a specific exception like so: trap [System.Net.WebException] { ... } share|improve this answer edited Aug 6 '10 at 18:19 answered Aug"ftp url: $ftp"
$webclient = New-Object System.Net.WebClient $uri = New-Object System.Uri($ftp)
"Uploading $File..."
$webclient.UploadFile($uri, $File)
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Handling Published 16 January 11 10:56 PM | MartinBell I remember giving a talk at Developer Day Scotland on T-SQL and one of the feedback was something like “A well presented talk on what is usually a very boring subject”. Although error is a mandatory part of programming, and some people may find testing all the possible use cases tedious, I would not say error handling itself is boring. I remember working on a system where that used a standard error handling template, and when the programmers created a new procedure they would copy and paste the code from an existing procedure. Unfortunately template was floored and it was feasible for errors to go undetected.In Powershell there are three methods of error handling: using a Trap handler using Try/Catch/Finally testing a known condition The trap handler has similarities to using ON ERROR in Visual Basic but it is active for a given scope. It is a available in Powershell 1.0 and 2.0. Try/Catch is available in Powershell 2.0 and will catch errors generated in the Try block. Testing a known condition is often overlooked, but if you are programming defensively it should also be used in conjunction with the other two methods.If you want to know more about error handling check out Steven Murawski’s blog post this also gives information about the error variables that are populated with exception information. The following examples require the following assemblies loaded:# load assemblies [Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.Smo") [Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.SqlEnum") [Reflection.Assembly]::LoadWithPartialName("Microsoft.SqlServer.ConnectionInfo") An example of using trap:function fn_getdbs ( [string] $server, [string] $userName, [string] $password ) { trap { write-host "Message: " $_.Exception.Message ; return ; } ; $conn