Unable to handle error Powershell try with catch?

Question

Hi, I write some PowerShell cmd to get the attribute of TransportRule. I know that this('TA') particular Transport rule does not exist in the exchange, I handle that thing through try with a catch but I do not get a correct result.

$temp="error"
Try{
Get-TransportRule -Identity TA|fl
}
Catch{
$temp
}

Please edit the question. Add your code and error messages as text, not as images. Pictures are hard to read, one cannot search those and copying any code requires extra effort. What's more, explain what's the desired output. — vonPryz
– vonPryz, Commented Sep 18, 2019 at 5:38

Ivan Mirchev · Accepted Answer · 2019-09-18 07:59:30Z

1

The issue is that Try / Catch statement works only with terminating errors. You may try:

$temp="error"
Try{ 
    Get-TransportRule -Identity TA -ErrorAction Stop | Format-List 
} 
Catch{ 
    $temp
}

Another option would be to change it generally for the current session, setting the default variable $ErrorActionPreference = 'Stop'. Then you do not need to use the -ErrorAction parameter.

Hope it helps.

answered Sep 18, 2019 at 7:59

Ivan Mirchev

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Suhas Parameshwara · Accepted Answer · 2019-09-18 07:01:52Z

0

In the PowerShell window you should give it in a singe line like,

$temp="error"; Try{ Get-TransportRule -Identity TA|fl } Catch{ $temp }

The other way of doing this is, save it in a file with .ps1 extension and if you try to run that from powershell it will handle the exception.

If you use multiple lines, the command will be executed in the order and each line will be considered as a separate command. So in your image, it is executing line by line and when it comes to Get-TransportRule command it doesn't have any connection between try and catch because it's a separate command.

Hope it helps! Cheers

edited Sep 18, 2019 at 7:01

answered Sep 18, 2019 at 6:06

Suhas Parameshwara

1,4749 silver badges18 bronze badges

1 Comment

vonPryz Over a year ago

Please edit the answer and explain why single line would work instead of using multiple lines.

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