Changing File name with PowerShell

Hello everyone,

I am rookie in a power shell, and I will be grateful for some help. I was trying to rename the suffix of filename, but it didn't go very well. Name of my file is: "hello.txt.abcdefg" I want to rename it into "hello.txt". I already tryed something like this:

Get-ChildItem * | Rename-Item -NewName {$_.name -replace ".%",'.txt'}

Get-ChildItem * | Rename-Item -NewName {$_.name -replace ".*",'.txt'}

I really don't know what am I doing here, so I will be grateful for a solution and some explanation here.

thanks in advance,

Alex

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Answer

DaveM121

Independent Advisor

Hi Alex

Can I please ask a question, are you doing this because all your filenames have been appended with an extra file extension, or is there another reason you need a script to do this . . .

The only reason i am asking, is if all your files have been appended with another file extension, that is the sign of a ransomware attack . . .

The script you would be looking for is something like this, please test that on a sample folder of test files, before attempting to run that on a folder of real files . . .

Dir *.* | rename-item -newname { [io.path]::ChangeExtension($_.name, "") }

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Answer

Shawn Brink

Hello Alex,

Option 5 in the tutorial below can show you one way to rename a file along with its file extension using PowerShell.

Rename-Item -Path "Full path of file" -NewName "New Name" -Force

https://www.tenforums.com/tutorials/125119-rename-file-windows-10-a.html#option5

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Changing File name with PowerShell

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