CODEWITHSUNDEEP
powershell
Balthazar
Balthazar

Reputation: 493

How to access Error Property after using cmdlet without loop

I'm trying to get some information of an Remove-Item operation in PowerShell.

Since I don't want the loop to stop when one Item on Remove-Item failes, I can't use Try{} catch{} and -ErrorAction Stop

Is there a way to get error information i want without clearing the error variable before Remove-Item, and also without having to use a loop to iterate over the files?

$error.clear()
$Files | Remove-Item -Force
0..($error.count - 1) | % { 
    $x = $Error[$_].CategoryInfo
    $y = "{0}, {1}, {2}" -f $x.Category, $x.Reason, $x.TargetName
    $ResultLog += [PSCustomObject]@{Result="Error"; Path=$p.path; Message=$y}
}

Upvotes: 0

Views: 32

Answers (2)

duct_tape_coder
duct_tape_coder

Reputation: 484

I like @HAL9256's gusto but I think using $Error.count is a bad idea. The count only goes up to 256 items before it stops counting up and starts dropping off the oldest errors. Depending on the volume of files and errors, you could easily run out of room there.

https://devblogs.microsoft.com/scripting/powershell-error-handling-and-why-you-should-care/

Rather than using the pipeline, I think a foreach would be better suited.

$ResultLog = @()
foreach ($file in $files) {
    try {
        Remove-Item $file -Force -ErrorAction Stop
    } catch {
        $x = $_.CategoryInfo
        $y = "{0}, {1}, {2}" -f $x.Category, $x.Reason, $x.TargetName
        $ResultLog += [PSCustomObject]@{Result="Error"; Path=$p.path; Message=$y}
    }
}

Upvotes: 1

HAL9256
HAL9256

Reputation: 13523

Use -ErrorAction Continue It won't halt the running of the script but will still add to the $Error variable.

To not have to clear the $Error variable before running, since the $Error variable is an array, simply store the Error count before running, and then use a For loop to only iterate through the new messages.

$ErrorsBefore = $Error.Count

$Files | Remove-Item -Force -ErrorAction Continue

$ResultLog = @()
For($i=0 ; $i -lt ($error.count - $ErrorsBefore); $i++) { 
    $x = $Error[$i].CategoryInfo
    $y = "{0}, {1}, {2}" -f $x.Category, $x.Reason, $x.TargetName
    $ResultLog += [PSCustomObject]@{Result="Error"; Path=$p.path; Message=$y}
}

Upvotes: 0

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