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Tweak your PowerShell scripts with essential preference variables! Use $ConfirmPreference = 'None' instead of ?Confirm:$false. Disable confirmation dialogs for smooth, unattended execution. Customise your PowerShell environment to suit your needs and increase efficiency!
Hiding confirmations
Occasionally, in scripts you see parameters like ?Confirm:$false. This is explicitly setting a switch parameter to $false, typically in an effort to hide confirmation dialogs and enable a script to run unattended.
Any confirmation dialog that would be suppressible by this parameter can also be turned off on a script-global scope, simply by adding this to the start of the script:
- $ConfirmPreference = 'None'
Likewise, if cmdlets show progress bars that you dont want to see (i.e. to speed up execution time), simply turn them off:
- $ProgressPreference = 'SilentlyContinue'
The "preference" set of variables generally enables you to tailor the PowerShell environment to your need:
- PS C:\> Get-Variable -Name *preference
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