Tag: powershell

All the articles with the tag "powershell".

• Write-Error vs error tracing

  26 Dec, 2014

  PowerShell Write-Error always reports line 1 instead of the actual error location, with no clean workaround found.

• PowerShell $ErrorActionPreference = "Stop" vs error tracing

  25 Dec, 2014

  Why ErrorActionPreference Stop hides the true error line number and how trap { throw $Error[0] } fixes it.

• PowerShell Start-Job WTF

  21 Jun, 2014

  Troubleshoots Start-Job scope issues with PSScriptRoot and shows how to invoke a script path asynchronously using ScriptBlock.Create.

• PowerShell Start-Process WTF

  20 Jun, 2014

  Documents a known PowerShell bug where Start-Process -PassThru does not expose ExitCode, with a workaround using Process.Start.

• PowerShell .NET property access swallows exceptions

  19 Jun, 2014

  Demonstrates that PowerShell silently returns null when a .NET property getter throws an exception, and how to avoid it.

• Unicode literals in PowerShell

  13 Jun, 2014

  How to express Unicode character literals in PowerShell using char casts and ConvertFromUtf32, including surrogate pair handling.

• PowerShell Registry Set-ItemProperty gotchas

  9 Jun, 2014

  Documents undocumented Type parameter behavior in Set-ItemProperty and how to correctly read and write typed registry values.

• PowerShell 3 - Attempting to perform the InitializeDefaultDrives operation on the FileSystem provider failed

  5 Jun, 2014

  Fix for a PowerShell 3 startup error caused by disconnected network drives, resolved via a registry key change.

• C__PowerShell Clipboard Watcher

  30 Aug, 2013

  Implements a clipboard change watcher in PowerShell using inline C# with P/Invoke and WinForms WM_CLIPBOARDUPDATE.

• PowerShell scripts and "Pattern Main"

  21 Aug, 2013

  Pattern for structuring PowerShell scripts with a Main function so core logic appears at the top before helper functions.