PowerShell PowerShell "Streams"; Debug, Verbose, Warning, Error, Output and Information Write Preferences
Example
Messages can be written with;
Write-Verbose "Detailed Message"
Write-Information "Information Message"
Write-Debug "Debug Message"
Write-Progress "Progress Message"
Write-Warning "Warning Message"
Each of these has a preference variable;
$VerbosePreference = "SilentlyContinue"
$InformationPreference = "SilentlyContinue"
$DebugPreference = "SilentlyContinue"
$ProgressPreference = "Continue"
$WarningPreference = "Continue"
The preference variable controls how the message and subsequent execution of the script are handled;
$InformationPreference = "SilentlyContinue"
Write-Information "This message will not be shown and execution continues"
$InformationPreference = "Continue"
Write-Information "This message is shown and execution continues"
$InformationPreference = "Inquire"
Write-Information "This message is shown and execution will optionally continue"
$InformationPreference = "Stop"
Write-Information "This message is shown and execution terminates"
The color of the messages can be controlled for Write-Error by setting;
$host.PrivateData.ErrorBackgroundColor = "Black"
$host.PrivateData.ErrorForegroundColor = "Red"
Similar settings are available for Write-Verbose, Write-Debug and Write-Warning.
