Powershell Get-ChildItem Script – Fix Get-ChildItem Include/Exclude Script Issues

powershellps1script

Im trying to run the following code as a powershell script,but I cant get it to work. 1st,the following works with one -Include item but I cant seem to get it to work with multiple ones. 2nd, the -Exclude perimeter doesn't seem to work. I still get files from the C:\Windows and C:\Program Files directorys .

$Include = "*.zip","*.rar","*.tar","*.7zip"
$exclude = "C:\Windows","C:\Program Files"
Get-ChildItem "C:\" -Include $Include -Exclude $Exclude -Recurse -Force -ErrorAction silentlycontinue | Select-Object -ExpandProperty FullName

Note: The purpose of this script is to find all compressed files on the system. I know this is probably really simple but I just cant seem to get it to work.

Best Answer

The -Exclude parameter has never really worked properly. It seems to match on the Name property, which is typically not very useful. You probably just have to do the filtering yourself:

$Include = "*.zip","*.rar","*.tar","*.7zip"
Get-ChildItem "C:\" -Include $Include -Recurse -Force -ErrorAction silentlycontinue | 
    ? { $_.FullName -notmatch "^C:\\Windows" -and $_.FullName -notmatch "^C:\\Program" } |
    Select-Object -ExpandProperty FullName

(By the way, -Filter is much, much faster than -Include. The downside is that you can't give it an array of patterns like you can with -Include. But it still may be faster even if you had to search four times. I couldn't say for sure. It might be worth testing if speed is important to you.)

Long version

$folder = "C:\somefolder"
$files = get-childitem -path $folder -recurse | where { -not $_.PSIsContainer }
[datetime]$dirDate = New-Object DateTime

foreach ($file In $files) {

    $strDate = $file.Name.substring(0,8)

    if (-Not [DateTime]::TryParseExact($strDate, "yyyyMMdd", 
        [System.Globalization.CultureInfo]::InvariantCulture, 
        [System.Globalization.DateTimeStyles]::None, [ref]$dirDate)) {

        $newName = $file.lastwritetime.tostring("yyyyMMdd ") + $file.name
        echo $newName
        #Rename-Item -path $file.Fullname -newname $newName
    }   
}

Short version

[datetime]$dirDate = New-Object DateTime

dir "C:\somefolder" -r | ? { ! $_.PSIsContainer } | % {          

    if ( ! [DateTime]::TryParseExact($_.Name.substring(0,8), "yyyyMMdd", 
        [System.Globalization.CultureInfo]::InvariantCulture, 
        [System.Globalization.DateTimeStyles]::None, [ref]$dirDate)) {

        $newName = $_.lastwritetime.tostring("yyyyMMdd ") + $_.name
        echo $newName
        #Ren $_.Fullname $newName
    }
}

Used stackoverflow answers

[DateTime]::TryParseExact to test if the first 8 characters can be a valid date
$_.lastwritetime.tostring("yyyyMMdd ") to format the lastwrite stamp

Best Answer

Related Solutions

PowerShell – Get-ChildItem to Return Files Only

PowerShell – Rename Multiple Files with LastWriteTime Prefix

Long version

Short version

Used stackoverflow answers

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