问题描述
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。
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！