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[英]How to exclude files and folders from Get-ChildItem in PowerShell?
[英]Powershell how to exclude folders from deletion process
我有一個 PowerShell 腳本,用於從 Windows 機器中刪除所有類型的文件,這些文件從根文件夾及其子文件夾中超過 x 天。 這工作正常,但是現在我想從刪除過程中排除 2 個子文件夾。 嘗試了排除命令,但由於我不熟悉 Powershell,我很難讓它正確。
PowerShell version: 5.1
文件夾結構(想從刪除過程中排除 SubDir 2 和 SubDir3)
MainDir
|
SubDir1 -> Folder1 -> Folder2 -> Zip/CSV files
SubDir2 -> Folder1 ->.txt files
|
Folder2 -> .txt files
SubDir3 -> Zip files
SubDir4 -> Folder1 -> zip/csv files
腳本:
param([string] $dir = "C:\MainDir",
[string] $days = "15")
$error.clear()
try
{
$refDate = (Get-Date).AddDays(-$days)
Get-ChildItem -Path $dir -Recurse |
Where-Object { !$_.PSIsContainer -and $_.LastWriteTime -lt $refDate } |
Remove-Item -Force
}
catch {
Write-Error $_
}
if (!$error) {
Write-Host 'Data deleted for files which are older than' $days 'Days'
}
由於您使用的是 PS 5.1,因此您可以使用-File
開關,而不必在 Where 子句中使用.$_.PSIsContainer
。
要排除子文件夾,您可以嘗試以下代碼:
$refDate = (Get-Date).AddDays(-$days).Date # set to midnight
$excludeFolders = 'SubDir2', 'SubDir3' # an array of folder names to exclude
# create a regex of the folders to exclude
# each folder will be Regex Escaped and joined together with the OR symbol '|'
$notThese = ($excludeFolders | ForEach-Object { [Regex]::Escape($_) }) -join '|'
Get-ChildItem -Path $dir -Recurse -File |
Where-Object { $_.DirectoryName -notmatch $notThese -and $_.LastWriteTime -lt $refDate } |
Remove-Item -Force
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