如何使用 Powershell 增加文件的副本?
How to increment copies of a file using Powershell?
我必须每小时将文件从一个文件夹移动到另一个文件夹。
如果目标文件夹中有文件副本,我希望将其命名为 FileName_1。在接下来的一个小时内,如果原始文件再次从源中复制,则希望将其命名为 FileName_2。如果它仍然存在则 FileName_3,然后 FileName_4 依此类推。
目前,我只能到达 FileName_1。问题是因为我更改了文件名并将其替换为新文件名,所以它覆盖了 FileName_1.
等一下。我在这里做了功课。我有一个代码块,它将按名称对文件进行排序,拆分名称,并将文件计数器加 1,但我没有到达代码的这一部分,因为初始检查(如果文件存在)在制作了第一个副本。
感谢任何帮助。
代码:
#Sources
$source = "C:\Users\Desktop\TEST\Test_1\*"
$sourceNameChange = "C:\Users\Desktop\TEST\Test_1"
#Destination
$destination = "C:\Users\Desktop\TEST\Test_2"
Function MoveFiles{
Param(
[string]$src,
[string]$dest,
[string]$srcNameChange
)
Get-ChildItem -Force -Recurse $src -ErrorAction Stop -ErrorVariable SearchError | ForEach-Object{
$fileNameSrc = $_.Name
$baseNameSrc = $_.BaseName
# Check for duplicate files
$testPath = Test-Path -Path $dest$baseNameSrc.*
If( $testPath )
{
$fileCounter = 1
$newName = $_.BaseName + "_"+$fileCounter + $_.Extension
"$srcNameChange$fileNameSrc" | Rename-Item -NewName $newName
}
$testPathDest = Test-Path -Path $dest$baseNameSrc_.*
If($testPathDest){
$sort = Get-Item -Path $dest\* -Filter *$baseNameSrc_* | Sort-Object -Property Name -Descending
$destFileName = $sort[1].BaseName
$destFileCounter = $destFileName.Split("_")[1]
$destNewName = $_.BaseName + "_"+($destFileCounter+1) + $_.Extension
"$srcNameChange$fileNameSrc" | Rename-Item -NewName $destNewName
}
}
Move-Item -Path $src -Destination $dest -Force
}
MoveFiles -src $source -dest $destination -srcNameChange $sourceNameChange
我添加了很多内联注释来帮助您理解函数的逻辑,基本上,您的代码缺少的是一个循环,该循环增加您正在移动的文件的索引,直到它不存在。
注意,请确保 $destination
不是包含在 $source
中的文件夹,否则您会因使用 -Recurse
.
function Move-Files {
[cmdletbinding()]
param(
[parameter(Mandatory, ValueFromPipeline)]
[string] $Source,
[parameter(Mandatory)]
[string] $Destination
)
begin {
# if destination doesn't exist, create the folder
if(-not (Test-Path $destination)) {
$null = New-Item -Path $destination -ItemType Directory
}
}
process {
# get all the files in `$source` and iterate over them
Get-ChildItem $source -File -Recurse -Force | ForEach-Object {
# check if a file with the same name exists in `$destination`
$thisFile = Join-Path $destination -ChildPath $_.Name
# if it does exist
if(Test-Path $thisFile) {
$i = 0
# start a loop, using `$i` as index
do {
# increase `$i` on each iteration and get a new name
$newName = $_.BaseName + "_" + ++$i + $_.Extension
# join the destination path with the new name
$thisFile = Join-Path $destination -ChildPath $newName
# do this while `$thisFile` exists on `$destination`
} while(Test-Path $thisFile)
}
# if we are here we can assume that either the file didn't exist
# on `$destination` OR the `do` loop got us a new name
Move-Item -LiteralPath $_.FullName -Destination $thisFile
}
}
}
$source = 'C:\Users\Desktop\TEST\Test_1'
$destination = 'C:\Users\Desktop\TEST\Test_2'
Move-Files -Source $source -Destination $destination
我必须每小时将文件从一个文件夹移动到另一个文件夹。
如果目标文件夹中有文件副本,我希望将其命名为 FileName_1。在接下来的一个小时内,如果原始文件再次从源中复制,则希望将其命名为 FileName_2。如果它仍然存在则 FileName_3,然后 FileName_4 依此类推。
目前,我只能到达 FileName_1。问题是因为我更改了文件名并将其替换为新文件名,所以它覆盖了 FileName_1.
等一下。我在这里做了功课。我有一个代码块,它将按名称对文件进行排序,拆分名称,并将文件计数器加 1,但我没有到达代码的这一部分,因为初始检查(如果文件存在)在制作了第一个副本。
感谢任何帮助。
代码:
#Sources
$source = "C:\Users\Desktop\TEST\Test_1\*"
$sourceNameChange = "C:\Users\Desktop\TEST\Test_1"
#Destination
$destination = "C:\Users\Desktop\TEST\Test_2"
Function MoveFiles{
Param(
[string]$src,
[string]$dest,
[string]$srcNameChange
)
Get-ChildItem -Force -Recurse $src -ErrorAction Stop -ErrorVariable SearchError | ForEach-Object{
$fileNameSrc = $_.Name
$baseNameSrc = $_.BaseName
# Check for duplicate files
$testPath = Test-Path -Path $dest$baseNameSrc.*
If( $testPath )
{
$fileCounter = 1
$newName = $_.BaseName + "_"+$fileCounter + $_.Extension
"$srcNameChange$fileNameSrc" | Rename-Item -NewName $newName
}
$testPathDest = Test-Path -Path $dest$baseNameSrc_.*
If($testPathDest){
$sort = Get-Item -Path $dest\* -Filter *$baseNameSrc_* | Sort-Object -Property Name -Descending
$destFileName = $sort[1].BaseName
$destFileCounter = $destFileName.Split("_")[1]
$destNewName = $_.BaseName + "_"+($destFileCounter+1) + $_.Extension
"$srcNameChange$fileNameSrc" | Rename-Item -NewName $destNewName
}
}
Move-Item -Path $src -Destination $dest -Force
}
MoveFiles -src $source -dest $destination -srcNameChange $sourceNameChange
我添加了很多内联注释来帮助您理解函数的逻辑,基本上,您的代码缺少的是一个循环,该循环增加您正在移动的文件的索引,直到它不存在。
注意,请确保 $destination
不是包含在 $source
中的文件夹,否则您会因使用 -Recurse
.
function Move-Files {
[cmdletbinding()]
param(
[parameter(Mandatory, ValueFromPipeline)]
[string] $Source,
[parameter(Mandatory)]
[string] $Destination
)
begin {
# if destination doesn't exist, create the folder
if(-not (Test-Path $destination)) {
$null = New-Item -Path $destination -ItemType Directory
}
}
process {
# get all the files in `$source` and iterate over them
Get-ChildItem $source -File -Recurse -Force | ForEach-Object {
# check if a file with the same name exists in `$destination`
$thisFile = Join-Path $destination -ChildPath $_.Name
# if it does exist
if(Test-Path $thisFile) {
$i = 0
# start a loop, using `$i` as index
do {
# increase `$i` on each iteration and get a new name
$newName = $_.BaseName + "_" + ++$i + $_.Extension
# join the destination path with the new name
$thisFile = Join-Path $destination -ChildPath $newName
# do this while `$thisFile` exists on `$destination`
} while(Test-Path $thisFile)
}
# if we are here we can assume that either the file didn't exist
# on `$destination` OR the `do` loop got us a new name
Move-Item -LiteralPath $_.FullName -Destination $thisFile
}
}
}
$source = 'C:\Users\Desktop\TEST\Test_1'
$destination = 'C:\Users\Desktop\TEST\Test_2'
Move-Files -Source $source -Destination $destination