[Solved] You want to write a PowerShell script that shows detailed debug messages only when debugging is enabled, and verbose messages only when... Which code snippet correctly implements this behavior? | PowerShell

PowerShell - Scripting Best Practices

You want to write a PowerShell script that shows detailed debug messages only when debugging is enabled, and verbose messages only when verbose is enabled. Which code snippet correctly implements this behavior?

A

<pre>$DebugPreference = 'Continue'
Write-Output "Normal output"
Write-Debug "Debug info"
Write-Verbose "Verbose info"</pre>

B

<pre>Write-Debug "Debug info"
Write-Verbose "Verbose info"
Write-Output "Normal output"</pre>

C

<pre>if ($DebugPreference -eq 'SilentlyContinue') { Write-Debug "Debug info" }
if ($VerbosePreference -eq 'SilentlyContinue') { Write-Verbose "Verbose info" }
Write-Output "Normal output"</pre>

D

<pre>Write-Debug "Debug info"
Write-Verbose "Verbose info"
Write-Output "Normal output"
Set-Variable -Name DebugPreference -Value 'Continue'</pre>

Step-by-Step Solution

Solution:

Step 1: Understand default behavior of Write-Debug and Write-Verbose
These commands automatically show messages only if debugging or verbose is enabled by running script with -Debug or -Verbose.

Step 2: Analyze code snippets

Write-Debug "Debug info"
Write-Verbose "Verbose info"
Write-Output "Normal output"

uses both commands directly, which is correct.

$DebugPreference = 'Continue'
Write-Output "Normal output"
Write-Debug "Debug info"
Write-Verbose "Verbose info"

sets $DebugPreference to 'Continue' first, forcing debug messages to always show even without -Debug.

if ($DebugPreference -eq 'SilentlyContinue') { Write-Debug "Debug info" }
if ($VerbosePreference -eq 'SilentlyContinue') { Write-Verbose "Verbose info" }
Write-Output "Normal output"

checks for 'SilentlyContinue', showing messages when NOT enabled.

Write-Debug "Debug info"
Write-Verbose "Verbose info"
Write-Output "Normal output"
Set-Variable -Name DebugPreference -Value 'Continue'

sets DebugPreference after messages, so ineffective.

Final Answer:
Write-Debug "Debug info" Write-Verbose "Verbose info" Write-Output "Normal output" -> Option B
Quick Check:
Write-Debug and Write-Verbose auto-check flags [OK]

Quick Trick: Use Write-Debug and Write-Verbose directly; flags control output [OK]

Common Mistakes:

Forcing preference to 'Continue' unconditionally
Using incorrect condition like 'SilentlyContinue' in checks
Setting preferences after output commands

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Which code snippet correctly implements this behavior?

Step 1: Understand default behavior of Write-Debug and Write-Verbose

Step 2: Analyze code snippets

Final Answer:

Quick Check:

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