Question

当我在下面运行此脚本时，我很高兴：

$backuplist = Get-ChildItem "E:\res\store\Backup"
ForEach ($dir in $backuplist) {                                                                                                                                                 
$letters= dir $dir.FullName -Recurse
$snd = $letters | Where FullName -like "*SND_BE*" -and $_.name -Like  
   "*Letters*" -and -$_.name l-like "*OvernightLetters*"| where-object  
  {$_.Name -notlike "*MailService*" -and $_.Name -notlike  
  "*CustomerCommunications*"
  -and $_.Name -notlike "*JobQueueResults*" -and $_.name -notlike "*Logs*" 
   -and $_.Name -notlike "*Notifications*" -and $_.name -notlike "*Uploads*"
   -and 
   $_.Name -notlike "*Uploads*"}
   $swy = $letters | Where FullName -like "*SWY_BE*" -and $_.name -Like 

 "*Letters*" -and -$_.name l-like "*OvernightLetters*"| where-object 
 {$_.Name -notlike "*MailService*" -and $_.Name -notlike 
 "*CustomerCommunications*"

 -and $_.Name -notlike "*JobQueueResults*" -and $_.name -notlike "*Logs*" 
  -and $_.Name -notlike "*Notifications*" -and $_.name -notlike "*tUploads*" 
   -and $_.Name -notlike "*Uploads*"}
   $snd | Copy-Item -Destination E:\TempLetters\SND
   $swy | Copy-Item -Destination E:\TempLetters\SWY
   }

我收到此错误Copy-Item：具有指定名称E：\ Templetters \ snd的项目已存在。我能做些什么不同的事情？我怎样才能使这个脚本更有效率？谢谢你的帮助将不胜感激。感谢

Answer 1

我重写了它的日志，因为你过滤了两次并获得了两次子项。但是，我修改过的脚本会写出脚本正在做什么，但实际上并没有执行操作。这将确保它正在按照您的预期进行操作。如果它执行了您期望的操作，则可以取消注释copy-item命令并再次运行它。

Get-ChildItem -Path "E:\res\store\Backup" -Recurse |

    # Filter children using Where-Object
    Where-Object -FilterScript {
        ( $_.Name -match "Letters|OvernightLetters" ) -and 
        ( $_.Name -notmatch "MailService|CustomerCommunications|JobQueueResults|Notifications|Logs|Uploads" )
    } |

        # Foreach of those objects, do something
        ForEach-Object -Process {

            # Use a regex switch to decide what to do with the remainder
            switch -Regex ( $_.FullName ) {
                "*SND_BE*" {
                    Write-Host "Copying `"$($_.FullName)`" to `"E:\TempLetters\SND`""
                    $NewPath = Join-Path -Path "E:\TempLetters\SND" -ChildPath $_.Name
                    if ( Test-Path -Path $NewPath ) {
                        Write-Warning "Path `"$NewPath`" already exists."
                    }
                    # Commenting out line below that actually performs the copy 
                    # $_ | Copy-Item -Destination E:\TempLetters\SND -Force
                }
                "*SWY_BE*" {
                    Write-Host "Copying `"$($_.FullName)`" to `"E:\TempLetters\SWY`""
                    $NewPath = Join-Path -Path "E:\TempLetters\SWY" -ChildPath $_.Name
                    if ( Test-Path -Path $NewPath ) {
                        Write-Warning "Path `"$NewPath`" already exists."
                    }
                    # Commenting out line below that actually performs the copy 
                    # $_ | Copy-Item -Destination E:\TempLetters\SWY -Force
                }
            } # Close switch -Regex ( $_.FullName )
        } # Close Foreach-Object

如何从Powershell脚本中删除错误并使其返回预期结果

1 个答案: