Summary

Completed

In this module, you learned about adding more troubleshooting information to scripts, configuring breakpoints for troubleshooting, and describing error actions in Windows PowerShell. Key takeaways:

• Errors can occur for reasons such as:

  • You made a mistake while entering code.
  • You queried an object that doesn't exist.
  • You attempted to communicate with a computer that's offline.

• When errors occur, they're stored in the $Error array; each new error is inserted at $Error[0], shifting older errors to higher indexes.

• Use Write-Host to display additional information while a script runs.

• Use Write-Warning instead of Write-Host to make troubleshooting output more easily identifiable.

• A breakpoint pauses a script at a specific point and provides an interactive prompt for troubleshooting.

• At a Windows PowerShell prompt, set breakpoints by using the Set-PSBreakPoint cmdlet.

• PowerShell errors are either terminating (the command stops) or non-terminating (processing continues).

Additional reading

To learn more, go through the following documents:

• About Preference Variables

• About Error Handling

• Set-PSBreakpoint