Effective Error Handling Techniques in PowerShell with PowerShell Administration Scripts

Effective Error Handling – A comprehensive guide on how to effectively handle errors in PowerShell scripts. Learn how to suppress errors and manage them using the try-catch mechanism.

Useful external reference: Microsoft Learn.

Hide Errors on a Single Command Line

Effective Error Handling – # First method to hide errors on a single command line

Useful external reference: Microsoft Learn.

Effective Error Handling – Remove-AppxPackage -Package $Package.PackageFullName -ErrorAction SilentlyContinue

Useful external reference: Microsoft Learn.

Hide Errors in a Block of Command Lines

Effective Error Handling – #Second method to hide errors in a block of command lines

Useful external reference: Microsoft Learn.

Effective Error Handling – $ErrorActionPreference = “SilentlyContinue”

Useful external reference: Microsoft Learn.

Effective Error Handling – Remove-Item “c:mountISO” -Force -Recurse

Useful external reference: Microsoft Learn.

Effective Error Handling – Remove-Item “c:mountWindows” -Force -Recurse

Useful external reference: Microsoft Learn.

Effective Error Handling – Remove-Item “c:mount” -Force -Recurse

Useful external reference: Microsoft Learn.

Effective Error Handling – Remove-Item “C:Scratch” -Force -Recurse

Useful external reference: Microsoft Learn.

Effective Error Handling – $ErrorActionPreference = “Continue”

Useful external reference: Microsoft Learn.

Managing Error

Effective Error Handling – It’s essential to have a mechanism in place to handle errors when they occur. Here’s an example of how you can manage errors in PowerShell:

Useful external reference: Microsoft Learn.

try {
   # Code that can generate an error
     $connectionString = "Server=$dataSource;uid=$user; pwd=$PassSQL;Database=$database; Integrated Security=False;"
  $connection = New-Object System.Data.SqlClient.SqlConnection
  $connection.ConnectionString = $connectionString
  $connection.Open()
} catch {
   # if there's an error in the try, this code will be used
  Write-Host $_.Exception.Message -ForegroundColor Red
}

Effective Error Handling –

Useful external reference: Microsoft Learn.