Powershell Error equivalent for try-catch?

Question

The script I'm writing frequently tries to delete files it doesn't have the ability to. This throws some errors, one where it doesn't have sufficient access rights and another where it later tries to delete the non-empty folder containing the first issue. It's fine that these hang around, but I'd like to still output error messages if anything is every thrown that isn't one of those two messages.

A try-catch block isn't catching anything, as they're errors rather than exceptions.

try
{
    Remove-Item D:\backup\* -Recurse
    Write-Host "Success" -ForegroundColor Green
    Write-Host $error.count
}
catch
{
    Write-Host "caught!" -ForegroundColor Cyan
}

Even though $error.count has errors inside it, it still successfully completes the try-block. Am I forced to manually check to see whether there's anything new in $error each time, or is there a better way for doing this? Thanks!

mjolinor · Accepted Answer · 2014-09-29 22:51:21Z

2

In a Try/Catch, the Catch block is only invoked on terminating errors.

Use the ErrorAction common parameter to force all errors to be terminating:

try
{
    Remove-Item D:\backup\* -Recurse -ErrorAction Stop
    Write-Host "Success" -ForegroundColor Green
    Write-Host $error.count
}
catch
{
    Write-Host "caught!" -ForegroundColor Cyan
}

answered Sep 29, 2014 at 22:51

mjolinor

68.7k7 gold badges118 silver badges141 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

walid toumi · Accepted Answer · 2014-09-30 04:53:47Z

0

Or use a global erroraction:

try {
 $erroractionpreference = 'stop'
 Remove-Item D:\backup\* -Recurse 
 Write-Host "Success" -ForegroundColor Green
 Write-Host $error.count 
} catch { 
 Write-Host "caught!" -ForegroundColor Cyan
}

answered Sep 30, 2014 at 4:53

walid toumi

2,2901 gold badge15 silver badges10 bronze badges

Collectives™ on Stack Overflow

Powershell Error equivalent for try-catch?

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related