另一种方法是从当前日期减去15天，并将CreationTime与该值进行比较:

$root  = 'C:\root\folder'
$limit = (Get-Date).AddDays(-15)

Get-ChildItem $root -Recurse | ? {
  -not $_.PSIsContainer -and $_.CreationTime -lt $limit
} | Remove-Item

下面的代码将删除文件夹中超过15天的文件。

$Path = 'C:\Temp'
$Daysback = "-15"
$CurrentDate = Get-Date
$DatetoDelete = $CurrentDate.AddDays($Daysback)
Get-ChildItem $Path -Recurse  | Where-Object { $_.LastWriteTime -lt $DatetoDelete } | Remove-Item

Esperento57脚本在较旧的PowerShell版本中无法运行。这个例子是:

Get-ChildItem -Path "C:\temp" -Recurse -force -ErrorAction SilentlyContinue | where {($_.LastwriteTime -lt  (Get-Date).AddDays(-15) ) -and (! $_.PSIsContainer)} | select name| Remove-Item -Verbose -Force -Recurse -ErrorAction SilentlyContinue

$limit = (Get-Date).AddDays(-15)
$path = "C:\Some\Path"

# Delete files older than the $limit.
Get-ChildItem -Path $path -Force | Where-Object { !$_.PSIsContainer -and $_.CreationTime -lt $limit } | Remove-Item -Force -Recurse

这将删除旧文件夹和它的内容。

另一种方法是从当前日期减去15天，并将CreationTime与该值进行比较:

$root  = 'C:\root\folder'
$limit = (Get-Date).AddDays(-15)

Get-ChildItem $root -Recurse | ? {
  -not $_.PSIsContainer -and $_.CreationTime -lt $limit
} | Remove-Item

如果你在Windows 10系统上使用上述示例有问题，请尝试将. creationtime替换为. lastwritetime。这对我很管用。

dir C:\locationOfFiles -ErrorAction SilentlyContinue | Where { ((Get-Date)-$_.LastWriteTime).days -gt 15 } | Remove-Item -Force