Powershell - 计算文件时的远程文件夹可用性 [英] Powershell - remote folder availability while counting files

问题描述

我正在尝试制作一个 Powershell 脚本，该脚本报告远程文件夹中是否存在超过 x 分钟的文件.我做这个:

I´m trying to make a Powershell script that reports if there´s a file older than x minutes on remote folder. I make this:

$strfolder = 'folder1 ..................'
$pocet = (Get-ChildItem \\server1\edi1\folder1\*.* ) | where-object {($_.LastWriteTime -lt      (Get-Date).AddDays(-0).AddHours(-0).AddMinutes(-20))}   | Measure-Object
if($pocet.count -eq 0){Write-Host $strfolder "OK" -foreground Green}
else {Write-Host $strfolder "ERROR" -foreground Red}

但是有一个大问题.由于高负载，该文件夹通常对我不可用，我发现当没有连接时，它不会报告错误，但在 $pocet.count 中继续为零.这意味着它在文件夹不可用时报告一切正常.

But there´s one huge problem. The folder is often unavailable for me bacause of the high load and I found out when there is no connection it doesn´t report an error but continues with zero in $pocet.count. It means it reports everything is ok when the folder is unavailable.

我正在考虑使用 if(Test-Path..) 但它在通过 Test-Path 后变得不可用怎么办?

I was thinking about using if(Test-Path..) but what about it became unavailable just after passing Test-Path?

请问有人有解决办法吗?

Does anyone has a solution please?

先谢谢你

推荐答案

即使将默认的 $ErrorActionPreference 设置为 Continue，我也尝试了您的这一行代码并遇到了相同的结果(即使路径不存在也没有错误).

I tried this line of your code and experienced the same result (no error even when the path doesn't exist) even with the default $ErrorActionPreference set to Continue.

$pocet = (Get-ChildItem \\server1\edi1\folder1\*.* ) | where-object {($_.LastWriteTime -lt (Get-Date).AddDays(-0).AddHours(-0).AddMinutes(-20))} | Measure-Object

试试这个(删除 *.* 会使它出错，但我们可以把它放回 -filter 参数中):

Try this instead (removing the *.* makes it error, but we can put that back in the -filter parameter):

$pocet = (Get-ChildItem \\server1\edi1\folder1 -Filter *.* ) | where-object {($_.LastWriteTime -lt (Get-Date).AddDays(-0).AddHours(-0).AddMinutes(-20))} | Measure-Object

然而，$pocet.Count 仍将等于 0，因为您实际上已经创建了一个类型为 Microsoft.PowerShell.Commands.MeasureInfo 的对象，该对象存在于 $pocet 中，并且 count 属性将当没有传递给它时等于零.

However $pocet.Count will still equal 0 because you've essentially created an object of the type Microsoft.PowerShell.Commands.MeasureInfo which exists in $pocet, and the count property is going to equal zero when nothing is passed to it.

相反，我会试试这个:

try
{
    $pocet = Get-ChildItem "\\server1\edi1\folder1" -Filter *.* -ErrorAction Stop | where-object { ($_.LastWriteTime -lt (Get-Date).AddMinutes(-20)) }
    if(($pocet | Measure-Object).Count -eq 0)
    {
        Write-Output "Folder ok"
    }
    else
    {
    }
}
catch
{
    Write-Output "Error getting items from folder"
    Write-Output $Error[0].Exception.Message
}

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