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Patrick Ogenstad

This site is in hybernation mode. To view my current work please visit Networklore.

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Imagine you are feeling handy and start out to rebuild your bathroom. Now imagine you’re standing knee deep in water in your basement. I bet you wished that somewhere in your head there was a tiny voice which had asked you, “do you really want to drill there”? This is the purpose of the PowerShell -Confirm parameter. If you’re running a cmdlet which changes the system state you can use -Confirm in order to get a question asking you if you really want to go ahead with the change. ### Argh, my files, my precious files!

We’ve all heard horror stories of format c: and the like. At one point you might even have deleted files by mistake. With the Remove-Item cmdlet you can do just that.

PS C:\Temp> Remove-Item *
PS C:\Temp>  <- That went smooth!

However wouldn’t this have been better:

PS C:\Temp> Remove-Item * -Confirm

Confirm
Are you sure you want to perform this action?
Performing operation "Remove File" on Target "C:\Temp\junkfile1.txt".
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): y

Confirm
Are you sure you want to perform this action?
Performing operation "Remove File" on Target "C:\Temp\junkfile2.txt".
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): y

Confirm
Are you sure you want to perform this action?
Performing operation "Remove File" on Target "C:\Temp\junkfile3.txt".
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): y

Confirm
Are you sure you want to perform this action?
Performing operation "Remove File" on Target "C:\Temp\single-copy-of-expense-report.xlsx".
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): n

Lessons Learned

As the carpenters say; measure twice, cut once. Sometimes it’s better to step carefully unless you are really sure of what you are doing. The -Confirm parameter can be that little voice inside your head.