Question

现在我有这段代码：

$items = @()
$OutputFilePath = "c:\csv\text1.csv"

dir -Force -Recurse | foreach { 
    $FullName  = $_.FullName            
    $Creation  = $_.CreationTimeUtc    
    $Modified  = $_.LastWriteTimeUtc   
    $Accessed  = $_.LastAccessTimeUtc  
    $Size      = $_.Length
    $Atributes = $_.Attributes

    $i = New-Object -TypeName psobject
    $i | Add-Member -MemberType NoteProperty -Name FullName           -Value $FullName
    $i | Add-Member -MemberType NoteProperty -Name CreatedDateUtc     -Value $Creation
    $i | Add-Member -MemberType NoteProperty -Name CreatedTimeUtc     -Value $Creation.TimeOfDay
    $i | Add-Member -MemberType NoteProperty -Name CreatedTicksUtc    -Value $Creation.Ticks
    $i | Add-Member -MemberType NoteProperty -Name ModifiedDateUtc    -Value $Modified 
    $i | Add-Member -MemberType NoteProperty -Name ModifiedTimeUtc    -Value $Modified.TimeOfDay
    $i | Add-Member -MemberType NoteProperty -Name ModifiedTicksUtc   -Value $Modified.Ticks
    $i | Add-Member -MemberType NoteProperty -Name AccessedDateUtc    -Value $Accessed 
    $i | Add-Member -MemberType NoteProperty -Name AccessedTimeUtc    -Value $Accessed.TimeOfDay
    $i | Add-Member -MemberType NoteProperty -Name AccessedTicksUtc   -Value $Accessed.Ticks
    $i | Add-Member -MemberType NoteProperty -Name Size               -Value $Size
    $i | Add-Member -MemberType NoteProperty -Name Atributes          -Value $Atributes
    $items += $i
}

$FileExists = Test-Path $OutputFilePath
if ($FileExists -eq $False) {
    $items | Export-Csv -Path $OutputFilePath -NoClobber -Encoding UTF8
} else {
    [System.Windows.Forms.MessageBox]::Show("The output file already exists. Please delete or rename it to continue." ,"Error", 0, [System.Windows.Forms.MessageBoxIcon]::Error)
}

它为我提供了文件夹和子文件夹中所有对象的UTC时间戳列表。（我发现UTC时间戳比非UTC时间戳更有用，因为我致力于虚拟现实天气时光倒流服务的概念，我理解夏令时开始和结束时的错误是不可接受的所以我说这些错误是在其他情况下也是不可接受的。）我缺少的是父文件夹本身的时间戳。

我怎样才能包含父文件夹的时间戳？

Answer 1

在当前目录中添加Get-Item：

$(Get-Item .; Get-ChildItem . -Recurse -Force) | ForEach-Object {
    ...
}

Answer 2

除了Ansgar Wiechers解决问题的答案之外：

一次创建PSObject，而不是逐个添加成员，这很慢
管道输出而不在每次迭代中重新创建数组，这很慢

$OutputFilePath = "c:\csv\text1.csv"

if (Test-Path $OutputFilePath) {
    [System.Windows.Forms.MessageBox]::Show(
        "The output file already exists. Please delete or rename it to continue.",
        "Error",
        0,
        [System.Windows.Forms.MessageBoxIcon]::Error
    )
} else {
    $(gi .; dir -Force -Recurse) | %{ 
        New-Object PSObject -Property @{
            FullName         = $_.FullName
            CreatedDateUtc   = $_.CreationTimeUtc
            CreatedTimeUtc   = $_.CreationTimeUtc.TimeOfDay
            CreatedTicksUtc  = $_.CreationTimeUtc.Ticks
            ModifiedDateUtc  = $_.LastWriteTimeUtc 
            ModifiedTimeUtc  = $_.LastWriteTimeUtc.TimeOfDay
            ModifiedTicksUtc = $_.LastWriteTimeUtc.Ticks
            AccessedDateUtc  = $_.LastAccessTimeUtc 
            AccessedTimeUtc  = $_.LastAccessTimeUtc.TimeOfDay
            AccessedTicksUtc = $_.LastAccessTimeUtc.Ticks
            Size             = $_.Length
            Atributes        = $_.Atributes
        }
    } | Export-Csv -Path $OutputFilePath -NoClobber -Encoding UTF8
}

我已经使用别名（gi Get-Item和% foreach），因为你喜欢它们。

改进我的PowersShell脚本，该脚本将文件夹中文件的时间戳列表导出为CSV文件

2 个答案: