重命名文件夹，并与现有文件夹合并如果Powershell中存在该文件夹

如何解决重命名文件夹，并与现有文件夹合并如果Powershell中存在该文件夹

尝试进行一些目录清除，并从旧方法过渡到新方法。目前，我们一直在逐例进行手动操作，但我决定研究automating the process。

从理论上讲，直到我们开始提取更多CSV数据并遇到新问题为止。

我无法在任何地方找到答案是“重新命名文件夹，如果名称存在，然后将两者合并”，就像在Windows资源管理器中看到的一样：

我知道这很危险-但这是我想到的唯一方法。

我looked into Copy-Item，但是由于文件夹的范围从几MB一直到>20GB（平均来说更大）。复制，移动子项然后删除-太慢了，再加上大约8000个文件夹来创建和移动，我认为缓冲区存储空间不足。

是否可以将文件夹和子文件夹合并到新创建的文件夹中？

这是我到目前为止所拥有的：

# set the working directory
Set-Location "B:\"

# import the CSV file for folder creation
$folders = Import-Csv -Delimiter "," -Header @("ID","caseName","caseNumber") -Path .\export.csv

# begin the loop
ForEach( $folder in $folders ) {

   # create the variables
   $columnID = $folder.ID
   $columnCase = "{0} {1}" -f $folder.caseName,$folder.caseNumber
   $columnNewCase = "{1},{0}" -f $folder.caseName,$folder.caseNumber

   # use later to create root folders
   $yearAllocation = "20{0}" -f $folder.caseNumber.Substring(0,2)


   #
   # // MARK: begin main folder creation
   #

   # "SMITH 12345678" and "12345678,SMITH" do NOT exist
   if( (-not ( Test-Path "$columnCase" )) -and (-not ( Test-Path "$columnNewCase" )) ) {
       # create the "12345678,SMITH"
       New-Item "$columnNewCase" -ItemType Directory
   }

   # "SMITH 12345678" EXISTS but "12345678,SMITH" does NOT exist
   if( ( Test-Path "$columnCase" ) -and (-not ( Test-Path "$columnNewCase" )) ) {
       # rename "SMITH 12345678" -> "12345678,SMITH"
       Rename-Item "$columnCase" -NewName $columnNewCase -Force
   }

   # "SMITH 12345678" does NOT exist but "12345678,SMITH" EXISTS
#   if( (-not ( Test-Path "$columnCase" )) -and ( Test-Path "$columnNewCase" ) ) {
#      # do nothing
#   }

   # "SMITH 12345678" and "12346578,SMITH" both EXIST
   if( ( Test-Path "$columnCase" ) -and ( Test-Path "$columnNewCase" ) ) {
       # merge "SMITH 12345678" -> "12345678,SMITH"
   }


   #
   # // MARK: begin ID folder moves
   #

   # if "98765" folder exists
   if( Test-Path "$columnID" ) {
       # move "98765" into "12345678,SMITH"
       Move-Item "$columnID" -Destination "$columnNewCase"
   }
} 

最后，我希望我们能得到现在这样的东西：

B:\
- 12345
- 23445
- 63574
- 73363
- SMITH 12345678
- JONES 58478945

进入：

B:\
- 12345678,SMITH
--- 12345
--- 23445
- 58478945,JONES
--- 63574
--- 73363

，如果有人不小心创建了新的手动文件夹：

B:\
- 12345678,JONES
--- 63574
--- 73363
- SMITH 12345678
--- 66684

然后重新运行脚本将很简单：

B:\
- 12345678,SMITH
--- 12345
--- 23445
--- 66684
- 58478945,JONES
--- 63574
--- 73363

解决方法

结果证明在Powershell中无法合并文件夹。

我最终通过扫描原始文件夹中的所有子文件夹并将它们移到新的目标位置来解决了这个问题。

为预防起见，然后将原始文件夹移到另一个目标位置，以便我们可以检查文件大小属性是否有遗漏。

# set the working directory
Set-Location "C:\"

# import the CSV file for folder creation
# create the headers for the file since CSVs dont have them
$csvRows = Import-Csv -Delimiter "," -Header @("ID","name","number") -Path .\file.csv

# begin the loop
    ForEach( $csvRow in $csvRows ) {

    # create the variables
    $columnID = $csvRow.ID
    $columnNameNumber = "{0} {1}"  -f $csvRow.name,$csvRow.number
    $columnNumberName = "{1},{0}" -f $csvRow.name,$csvRow.number


    #
    # // MARK: begin main folder creation
    #

    # "SMITH 12345678" and "13246578,SMITH" do NOT exist
    if( (-not ( Test-Path "$columnNameNumber" )) -and (-not ( Test-Path "$columnNumberName" )) ) {
        # create the "12345678,SMITH"
        New-Item "$columnNumberName" -ItemType Directory
    }

    # "SMITH 12345678" EXISTS but "13246578,SMITH" does NOT exist
    if( ( Test-Path "$columnNameNumber" ) -and (-not ( Test-Path "$columnNumberName" )) ) {
        # rename "SMITH 12345678" -> "12345678,SMITH"
        Rename-Item "$columnNameNumber" -NewName $columnNumberName -Force
    }

    # "SMITH 12345678" does NOT exist but "13246578,SMITH" EXISTS
    if( (-not ( Test-Path "$columnNameNumber" )) -and ( Test-Path "$columnNumberName" ) ) {
        # do nothing
    }

    # "SMITH 12345678" and "13246578,SMITH" both EXIST
    if( ( Test-Path "$columnNameNumber" ) -and ( Test-Path "$columnNumberName" ) ) {
        # find all the items in $columnNameNumber
        $subDirectory = Get-ChildItem $columnNameNumber -Name

        # loop through and move to $columnNameNumberNew
        ForEach( $childItem in $subDirectory ) {
            Move-Item "$columnNameNumber\$childItem" -Destination "$columnNumberName"
        }

        # rename to know its done
        if( ( Test-Path .\destination ) ) {
            Move-Item "$columnNameNumber" -Destination .\destination
        }
    }


    #
    # // MARK: begin ID folder moves
    #

    # if "98765" folder exists
    if( Test-Path "$columnID" ) {
        # move "98765" into "12345678,SMITH"
        Move-Item "$columnID" -Destination "$columnNumberName"
    }
}

希望这对以后的人有帮助！