Powershell，查看所有驱动器 [英] Powershell, look through all drives

问题描述

我是 Powershell 的新手，我尝试在网上找到解决问题的方法，但似乎找不到.基本上我需要写一些东西，让 powershell 查看所有驱动器和目录以找到以下内容:

I'm new to Powershell and I've tried finding a solution to my problem online but I can't seem to find one. Basically I need to write something that will let powershell look through all drives and directories to find the following:

文件总数(不包括文件夹)、最大文件大小、平均文件大小、总文件大小

total number of files (exclude folders), largest file size, average file size, total file size

这是我目前所写的内容:

Here's what I've written so far:

$source = "get-psdrive"

#attempt at looking through all drives/directories which didn't work
foreach($a in $source) {

    #counts files in given directory
    Get-ChildItem -Recurse -File -ErrorAction SilentlyContinue -Force |
        Measure-Object |
        ForEach-Object { $_.Count }

    #select largest file in given directory
    Get-ChildItem -Recurse -File -ErrorAction SilentlyContinue -Force |
        Sort-Object Length -Descending |
        Select-Object -First 1

    #get average file size in a given directory
    Get-ChildItem -Recurse -File -ErrorAction SilentlyContinue -Force |
        Measure-Object -Property Length -Average

    #sum of file sizes in given directory
    (Get-ChildItem -Recurse -File -ErrorAction SilentlyContinue -Force |
        Measure-Object -Sum Length).Sum
}

问题是它只能在 C 盘中查找.我不知道是否有办法查看我的计算机而不是特定驱动器，但我似乎找不到方法.任何帮助表示赞赏.

The issue is that it only looks in the C drive. I don't know if there's a way to look through my computer instead of specific drives but I couldn't seem to find a way. Any help is appreciated.

推荐答案

使用 "..." 定义一个字符串，因此在您的示例中，您尝试遍历字符串.

With "..." you define a string, so in your example you try to loop over a string.

试试这个:

$Drives = Get-PSDrive -PSProvider 'FileSystem'

foreach($Drive in $drives) {

    #counts files in given directory
    Get-ChildItem -Path $Drive.Root -Recurse -File -ErrorAction SilentlyContinue -Force |
        Measure-Object |
        ForEach-Object { $_.Count }

    #select largest file in given directory
    Get-ChildItem -Path $Drive.Root -Recurse -File -ErrorAction SilentlyContinue -Force |
        Sort-Object Length -Descending |
        Select-Object -First 1

    #get average file size in a given directory
    Get-ChildItem -Path $Drive.Root -Recurse -File -ErrorAction SilentlyContinue -Force |
        Measure-Object -Property Length -Average

    #sum of file sizes in given directory 
    (Get-ChildItem -Path $Drive.Root -Recurse -File -ErrorAction SilentlyContinue -Force |
        Measure-Object -Sum Length).Sum

}

注意！我没有更改您的 Get-ChildItem 代码(它将搜索的路径除外).我只写了 foreach 循环.

Note! I didn't chang your Get-ChildItem code (except the path where it will search). I only wrote the foreach loop.

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