PS-如何从文本文件中删除文件名条目

Question

I get a list of extracted files without their full path. They come in a txt file on seperate lines. These files can be found in different folders or subfolders. I'd like to delete the files from the list and remove the file name from the list only if they're older than 30 minutes.

list.txt example:

file1.doc
file2.doc
file3.doc

Let's say file3.doc is less than 30 minutes old. With my current code I can get as far as deleting file1.doc and file2.doc and not touch file3.doc no problem. I would like my code to remove file1.doc and file2.doc from list.txt as it deletes the files.

$Now = Get-Date
$Minutes = "30"
$TargetFolder = "C:\Test"
$LastWrite = $Now.AddMinutes(-$Minutes)

$Files = Get-Content C:\list.txt |% {get-childitem $TargetFolder -include $_ -recurse} | Where {$_.LastWriteTime -le "$LastWrite"}

foreach ($File in $Files)
    {
    if ($File -ne $NULL)
        {
        Remove-Item $File.FullName -WhatIf | out-null
        }
    }

I am a total beginner How would I go about removing the file name from the original list C:\\list.txt?

Thank you.

Answer 1

I got it using Set-Content in the following manner. Feel free to comment if you think i'm doing something wrong, but this works me very well as it is.

$Now = Get-Date
$Minutes = "30"
$TargetFolder = $args[0]
$LastWrite = $Now.AddMinutes(-$Minutes)
$List = "C:\list.txt"

$Files = Get-Content $List |% {get-childitem $TargetFolder -include $_ -recurse} | Where {$_.CreationTime -le "$LastWrite"}

foreach ($File in $Files)
    {
    if ($File -ne $NULL)
        {
        Add-Content -path C:\deleted.txt -value ((get-date).ToShortDateString() + ' - ' + (get-date).ToShortTimeString() + '  ' + $File.FullName)
        Remove-Item $File.FullName | out-null
        Set-Content -Path $List -Value (get-content -Path $List | Select-String -Pattern $File.Name -NotMatch)
        }
    }