Rowupdating error handling
Hence, these types of errors are known as “non-terminating” errors.If you set $Error Action Preference to Stop or if you use Stop as the parameter value for -Error Action, Windows Power Shell will stop the script execution at the point an error occurs.If you’re developing a Windows Power Shell workflow, you can also use the Suspend value. When you specify the Error Action parameter during a call to a command, the specified behavior will override the $Error Action Preference variable in Windows Power Shell.This variable is part of a handful of variables known as “preference variables.” By default, Windows Power Shell uses an error action preference of Continue, which means that errors will be written out to the host, but the script will continue to execute.
We will show different error handling methods: The code above is more efficient than the earlier code, because it uses a simple error handling mechanism to stop the script after the error.
One of the benefits of developing cmdlet-style commands instead of basic functions, is that they offer a few “common parameters.” Two of these common parameters are related to error handling: -Error Action and -Error Variable.
For more information about common parameters in advanced functions and compiled cmdlets, run this command at the Windows Power Shell prompt: Get-Help -Name about_Common Parameters; Error Variable Parameter Normally, if you run a Windows Power Shell command and an error occurs, the error record will be appended to the “automatic variable” named $error.
If you’re coming to Windows Power Shell from a software development background, you’ll most likely pick up on Try-Catch-Finally pretty easily.
On the other hand, if you’re new to scripting, or you are a curious, knowledge-driven individual, you might want to consider what we’re talking about today.