windows 使用 Powershell 计算文件夹
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Counting folders with Powershell
提问by M. X
Does anybody know a powershell 2.0command/script to count all folders and subfolders (recursive; no files) in a specific folder ( e.g. the number of all subfolders in C:\folder1\folder2)?
有没有人知道一个powershell 2.0命令/脚本来计算特定文件夹中的所有文件夹和子文件夹（递归；没有文件）（例如，C:\folder1\folder2 中所有子文件夹的数量）？
In addition I also need also the number of all "leaf"-folders. in other words, I only want to count folders, which don't have subolders.
此外，我还需要所有“叶”文件夹的数量。换句话说，我只想计算没有子目录的文件夹。
回答by RB.
You can use get-childitem -recurseto get all the files and folders in the current folder.
您可以使用get-childitem -recurse获取当前文件夹中的所有文件和文件夹。
Pipe that into Where-Objectto filter it to only those files that are containers.
通过管道将Where-Object其过滤到仅作为容器的文件。
$files = get-childitem -Path c:\temp -recurse
$folders = $files | where-object { $_.PSIsContainer }
Write-Host $folders.Count
As a one-liner:
作为单线：
(get-childitem -Path c:\temp -recurse | where-object { $_.PSIsContainer }).Count
回答by Shay Levy
In PowerShell 3.0 you can use the Directory switch:
在 PowerShell 3.0 中，您可以使用目录开关：
(Get-ChildItem -Path <path> -Directory -Recurse -Force).Count
回答by walid2mi
Another option:
另外一个选项：
(ls -force -rec | measure -inp {$_.psiscontainer} -Sum).sum
回答by Dan Puzey
This is a pretty good starting point:
这是一个很好的起点：
(gci -force -recurse | where-object { $_.PSIsContainer }).Count
However, I suspect that this will include .zipfiles in the count. I'll test that and try to post an update...
但是，我怀疑这将包括.zip计数中的文件。我会测试并尝试发布更新...
EDIT:Have confirmed that zip files are notcounted as containers. The above should be fine!
编辑：已确认 zip 文件不计为容器。以上应该没问题！
回答by zdan
To answer the second part of your question, of getting the leaf folder count, just modify the where object clause to add a non-recursive search of each directory, getting only those that return a count of 0:
要回答问题的第二部分，即获取叶文件夹计数，只需修改 where object 子句以添加对每个目录的非递归搜索，仅获取返回计数为 0 的那些：
(dir -rec | where-object{$_.PSIsContainer -and ((dir $_.fullname | where-object{$_.PSIsContainer}).count -eq 0)}).Count
it looks a little cleaner if you can use powershell 3.0:
如果您可以使用 powershell 3.0，它看起来会更干净一些：
(dir -rec -directory | where-object{(dir $_.fullname -directory).count -eq 0}).count
回答by Pierluigi
Get the path child items with recourse option, pipe it to filter only containers, pipe again to measure item count
使用资源选项获取路径子项，通过管道将其过滤以仅过滤容器，再次管道以测量项目计数
((get-childitem -Path $the_path -recurse | where-object { $_.PSIsContainer }) | measure).Count
