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关于如何将一堆 Get- 绑定到输出 .txt 的建议

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关于如何将一堆 Get- 绑定到输出 .txt 的建议

仍在学习 PS 的使用方法，并寻求一些建议。我一直在编写脚本来查找 C 是否小于或等于 20GB，并列出常见位置（如文档和下载）并测量它们的大小。现在一切都已整理好，我想将它检查的每个文件夹放入一个 output.txt 中，但不确定如何操作。我想以某种方式将所有 Get-Childitems 绑定在一起，但不知道从哪里开始。这是我目前得到的结果。

#Check size of C and if its < or = 20GB

$FreeSpace = Get-PSDrive -Name 'c' | Select-Object Free

Write-Host "Free Space On C Left"

$TotalFreeSpace = $FreeSpace.free

$num = $TotalFreeSpace 
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}


$condition = $TotalFreeSpace
if ( $condition -le 20 )
{
    Write-Output "The C Drive's free space is > or = 20GB" 
}


#File Location Measures

$UserName = $env:UserName

Write-Host "Desktop Folder Size"

$Desktop = Get-Childitem C:\LOCAL\$UserName\Desktop | Measure-Object -Sum Length

$num = $Desktop.sum
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}


Write-Host "My Documents Folder Size"

$Documents = Get-Childitem C:\LOCAL\$UserName\'My Documents' | Measure-Object -Sum Length

$num = $Documents.sum
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}

Write-Host "Downloads Folder Size"

$Downloads = Get-Childitem C:\Users\$UserName\Downloads | Measure-Object -Sum Length

$num = $Downloads.sum
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}


Write-Host "Picture Folder Size"

$Pictures = Get-Childitem C:\LOCAL\$UserName\'My Documents'\'My Pictures' | Measure-Object -Sum Length

$num = $Pictures.sum
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}

Write-Host "Music Folder Size"

$Music = Get-Childitem C:\LOCAL\$UserName\'My Documents'\'My Music' | Measure-Object -Sum Length

$num = $Music.sum
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}

Write-Host "Videos Folder Size"

$Videos = Get-Childitem C:\LOCAL\$UserName\'My Documents'\'My Videos' | Measure-Object -Sum Length

$num = $Videos.sum
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}

Write-Host "Recycle Bin Size"


($RecycleBin = Get-ChildItem -LiteralPath 'C:\$Recycle.Bin' -File -Force -Recurse -ErrorAction SilentlyContinue |
    Measure-Object -Property Length -Sum).Sum

$num = $RecycleBin.sum
if ($num -lt 1TB) {
    $num = $num / 1GB
    $num = "{0:n2}" -f $num
    "$num GB"
}

 |  Out-File -Path C:\LOCAL\$UserName\Desktop\$UserName'CDriveFullOutput'.txt

#Thanks to Lee_Dailey for Dev help!

答案1

我注意到的第一件事是，你正在计算文件的大小直接地文件夹内有，但子文件夹中没有存储任何内容。您只能在回收站上使用递归。

其次，您在每个步骤中都重复代码来格式化尺寸，因此我建议为其创建一个小辅助函数，以使代码更加清晰。

然后，您对文件夹路径进行硬编码，我认为有更好的选择，最后，如果您的目标是将 7 个格式化的数字输出到一个文件，为什么不从收集的信息中创建一个 CSV 文件，这样您就有标题来告诉您每个数字代表什么。

请尝试以下操作：

function Format-ByteSize {
    # helper function to format a given size in bytes
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [ValidateRange(0, [double]::MaxValue)]
        [double]$SizeInBytes
    )

    $units = "Bytes", "KB", "MB", "GB", "TB", "PB"
    $index = 0

    while ($SizeInBytes -gt 1024 -and $index -le $units.length) {
        $SizeInBytes /= 1024
        $index++
    }
    if ($index) { '{0:N2} {1}' -f $SizeInBytes, $units[$index] }
    else { "$SizeInBytes Bytes" }
}


#Check size of C and if its < or = 20GB

$FreeSpace = (Get-PSDrive -Name 'C').Free
if ($FreeSpace -le (20 * 1GB)) {
    Write-Warning "The C Drive's free space is less or equal to 20GB" 
}

# get the sizes of the folders of interest. 
$desktopPath = [Environment]::GetFolderPath("Desktop")
$DesktopSize = (Get-Childitem -Path $desktopPath -File -Recurse | Measure-Object -Sum Length).Sum
# seeing that the 'My Pictures', 'My Music' and 'My Videos' folders are INSIDE the 'My Documents' folder, you may
# want to think about adding the -Recurse switch to this path or not..
$DocumentSize = (Get-Childitem -Path ([Environment]::GetFolderPath("MyDocuments")) -File | Measure-Object -Sum Length).Sum
# If you've recursed the 'My Documents' folder, the below sizes will be included there
$PicturesSize = (Get-Childitem -Path ([Environment]::GetFolderPath("MyPictures")) -File -Recurse | Measure-Object -Sum Length).Sum
$MusicSize = (Get-Childitem -Path ([Environment]::GetFolderPath("MyMusic")) -File -Recurse | Measure-Object -Sum Length).Sum
$VideoSize = (Get-Childitem -Path ([Environment]::GetFolderPath("MyVideos")) -File -Recurse | Measure-Object -Sum Length).Sum

# the Downloads folder path is more tricky to find
$downloadsPath = (New-Object -ComObject Shell.Application).NameSpace('shell:Downloads').Self.Path
$DownloadSize  = (Get-Childitem -Path $downloadsPath -File -Recurse | Measure-Object -Sum Length).Sum

# finally the recycle bin on the C drive
$RecycleBin = (Get-ChildItem -LiteralPath 'C:\$Recycle.Bin' -File -Force -Recurse -ErrorAction SilentlyContinue |
               Measure-Object -Property Length -Sum).Sum

# now put all this info in an **object** so you can save as CSV file with headers
$result = [PsCustomObject]@{
    FreeSpace   = Format-ByteSize $FreeSpace
    Desktop     = Format-ByteSize $DesktopSize
    MyDocuments = Format-ByteSize $DocumentSize
    MyPictures  = Format-ByteSize $PicturesSize
    MyVideos    = Format-ByteSize $MusicSize
    Downloads   = Format-ByteSize $DownloadSize
    RecycleBin  = Format-ByteSize $RecycleBin
}

# output to console screen
$result

#output to structured CSV file you can open in Excel
$result | Export-Csv -Path (Join-Path -Path $desktopPath -ChildPath 'CDriveFullOutput.csv') -NoTypeInformation -UseCulture

在屏幕上，这将输出如下内容：

FreeSpace   : 119,49 GB
Desktop     : 12,23 KB
MyDocuments : 26,99 MB
MyPictures  : 1,88 GB
MyVideos    : 119,90 GB
Downloads   : 573,88 MB
RecycleBin  : 537 Bytes

答案2

再次感谢大家，终于搞清楚了数组以及该助手的工作原理，真是太好了。必须重写一堆旧的硬件测量方法，哈哈

function Format-ByteSize {
    # helper function to format a given size in bytes
    [CmdletBinding()]
    param(
        [Parameter(Mandatory = $true, ValueFromPipeline = $true)]
        [ValidateRange(0, [double]::MaxValue)]
        [double]$SizeInBytes
    )

    $units = "Bytes", "KB", "MB", "GB", "TB", "PB"
    $index = 0

    while ($SizeInBytes -gt 1024 -and $index -le $units.length) {
        $SizeInBytes /= 1024
        $index++
    }
    if ($index) { '{0:N2} {1}' -f $SizeInBytes, $units[$index] }
    else { "$SizeInBytes Bytes" }
}



$PCName = $env:computername
$UserName = $env:UserName

$FreeSpace = (Get-PSDrive -Name 'C').Free

if ($FreeSpace -le (20 * 1GB)) {

$Desktop = (Get-Childitem C:\LOCAL\$UserName\Desktop -File -Force -Recurse | Measure-Object -Sum Length).Sum

$Documents = (Get-ChildItem -Path C:\LOCAL\$UserName\'My Documents' -File -Force -Recurse | Measure-Object -Sum Length).Sum

$Downloads = (Get-Childitem C:\Users\$UserName\Downloads -File -Force -Recurse | Measure-Object -Sum Length).Sum

$Pictures = (Get-Childitem C:\LOCAL\$UserName\'My Documents'\'My Pictures' -File -Force -Recurse | Measure-Object -Sum Length).Sum

$Music = (Get-Childitem C:\LOCAL\$UserName\'My Documents'\'My Music' -File -Force -Recurse | Measure-Object -Sum Length).Sum

$Videos = (Get-Childitem C:\LOCAL\$UserName\'My Documents'\'My Videos' -File -Force -Recurse | Measure-Object -Sum Length).Sum

$RecycleBin = (Get-ChildItem -LiteralPath 'C:\$Recycle.Bin' -File -Force -Recurse -ErrorAction SilentlyContinue | Measure-Object -Sum Length).Sum


$Aray = [PsCustomObject]@{
    
    FreeSpace = Format-ByteSize $FreeSpace
    Desktop = Format-ByteSize $Desktop
    Documents = Format-ByteSize $Documents
    Downloads = Format-ByteSize $Downloads
    Pictures = Format-ByteSize $Pictures
    Music = Format-ByteSize $Music
    Videos = Format-ByteSize $Videos
    RecycleBin = Format-ByteSize $RecycleBin
}

$Aray | Export-Csv -Path (Join-Path -Path "\\HAWA-COL04\Support_Tools\Scripts\PS\Local Scripts\FullC\ScriptOutput" -ChildPath $PCName-$UserName'-FullCDrive'.csv)

}

感谢 Lee_Dailey 和 Theo 的开发帮助！

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