在PowerShell中重命名文件夹,如果存在,则与现有文件夹合并。

3

我正在尝试进行一些目录清理,并从旧方法转换为新方法。目前我们一直在手动逐个案例地处理,但我决定研究自动化该过程

这在理论上是可行的,直到我们开始提取更多的CSV数据并遇到新问题。

我无法在任何地方找到答案的是“重命名文件夹,如果名称存在,则合并两个文件夹”,就像你在Windows资源管理器中看到的那样:

我知道这很危险,但这是我能想到的唯一方法。
研究了Copy-Item,但由于文件夹大小从几MB到>20GB不等(平均而言更偏向较大的一侧),复制、移动子项、然后删除太慢了——再加上需要创建和移动约8000个文件夹,我认为没有足够的缓冲存储空间。
是否可以将文件夹和子文件夹合并到新创建的文件夹中?
这是我目前的进展:
# 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"
   }
} 

最终,我希望我们能够得到目前看起来像这样的东西:
B:\
- 12345
- 23445
- 63574
- 73363
- SMITH 12345678
- JONES 58478945

转化为:

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

如果有人意外地创建了一个新的手动文件夹:

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

然后重新运行脚本只会:
B:\
- 12345678, SMITH
--- 12345
--- 23445
--- 66684
- 58478945, JONES
--- 63574
--- 73363

1
你能告诉我“合并”和“复制”的区别吗?对我来说,它们是一样的,如果你复制某些东西,它会覆盖相同的文件(源和目标),而忽略其他文件,那么合并不也是这样吗? - Adis1102
Adis是正确的。当你在PowerShell中复制时,默认情况下它会合并具有相同名称的文件夹。您可以使用copy-item进行合并,然后使用remove-item删除已复制的文件。 - AutomatedOrder
1个回答

2

事实证明,在Powershell中没有合并文件夹的方法。

最终,我通过扫描原始文件夹中的所有子文件夹并将它们移动到新目标来解决了这个问题。

作为预防措施,然后将原始文件夹移动到另一个目标,以便我们可以进行文件大小属性检查,以确保没有遗漏任何文件。

# 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"
    }
}

希望这能帮助到未来的某个人!

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