Mastering Windows PowerShell Scripting - Third Edition

Terminating or non-terminating

One of the challenges of writing error handling is determining whether the error is terminating or non-terminating.

A possible solution is to force all errors to be terminating by setting ErrorActionPreference to Stop.

Setting ErrorActionPreference to Stop is equivalent to adding -ErrorAction Stop to every command that supports it.

When exploring nesting try-catch-finally, the following example was used:

try {    
    Connect-Server 
    Get-ManagementObject | ForEach-Object { 
        try {     
            $_ | Set-ManagementObject -Property 'NewValue' 
        } catch { 
            Write-Error -ErrorRecord $_ 
        } finally { 
            $_ 
        }    
    }     
} catch { 
    throw} 

Setting ErrorActionPreference to Stop would remove the need to set an ErrorAction parameter on each of the commands (if ...