![]() ![]() Yes Yes to All No No to All Suspend Help (default is "Y"):y DEBUG: 25+ $runningTotal /= 2 DEBUG: ! SET $runningTotal = '911.25'.Ĭontinue with this operation? 27+ $host.EnterNestedPrompt() Yes Yes to All No No to All Suspend Help (default is "Y"):y DEBUG: 24+ $runningTotal *= 3 DEBUG: ! SET $runningTotal = '1822.5'.Ĭontinue with this operation? 25+ $runningTotal /= 2 DEBUG: 23+ SetPsDebug StepĬontinue with this operation? 24+ $runningTotal *= 3 DEBUG: 21+ $runningTotal /= 2 DEBUG: ! SET $runningTotal = '607.5'. Debugging a complex script (continued)ĭEBUG: 17+ $dirCount = $env:WINDIR).Count DEBUG: 17+ $dirCount = $env:WINDIR).Count DEBUG: 19+ SetPsDebug Trace 2 DEBUG: 20+ $runningTotal = 10 DEBUG: ! SET $runningTotal = '1215'. + $tsetVariable $debugPreference = "Continue" PS >InvokeComplexScript.ps1 Calculating lots of complex information DEBUG: Current value: 1225Įxample 134. PS >$testVariable = "Hello" PS >$tsetVariable += " World" PS >$testVariable Hello PS >RemoveItem Variable:\tsetvariable PS >SetPsDebug Strict PS >$testVariable = "Hello" PS >$tsetVariable += " World" The variable $tsetVariable cannot be retrieved because it has not been set Example 132 demonstrates this mode.Įxample 132. To help save you from getting stung by this problem, PowerShell provides a stric t mode that generates an error if you attempt to access a nonexisting variable. It also allows you to retrieve data from variables that don’t exist-which usually happens by accident and almost always causes bugs. ![]() To explore the environment at a specific point of execution, add a line that calls $host.EnterNestedPrompt().īy default, PowerShell allows you to assign data to variables you haven’t yet created (thereby creating those variables). If you want to step through a region carefully, surround it with SetPsDebug –Step calls. To generate debugging statements from your script, Use the WriteDebug cmdlet. You want to diagnose failures or unexpected behavior in a script interactively.
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