Question

How do you trim the date from a text file. For example, I have multiple files like:

• test_20091011.txt
• try_20091011.txt
• fold_20091011.txt

I would like to change into:

• test.txt
• try.txt
• fold.txt

Thanks.

Answer 1

This code should work assuming the text file name format doesn’t change, as in, it’s always the last 9 characters you need to remove. This code assumes the txt files are in the folder C:\folder

    $filelist = (get-childitem c:\folder | Where-Object {$_.mode -match "a"} | foreach-object {$_.name})
foreach ($file in $filelist)
    {
        $len = $file.length
        $newname = $file.substring(0,$len -13)
        $newname = $newname + '.txt'
        Rename-Item C:\folder\$file $newname
        clear-variable newname, len
    }