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Asked: 2021-08-09 01:34:21 +0800 CST

如果文件名中的某些字符匹配，则移动文件

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我有一个文件夹，里面有文件（$WorkDir）：“330526.pdf”、“330527.pdf”、“330528.pdf”等。

然后我有另一个文件夹，其中包含文件（$ESDir）：“e00526.pdf”、“e00527.pdf”、“e00528.pdf”等。

现在我想搜索文件$WorkDir并搜索$ESDir.

然后，如果文件名中的最后 4 个字符/数字匹配（“xx 0526 ”），我想将匹配的文件从“ $ESDir”移动到$WorkDir.

$WorkDir = "C:\1_PDF\source\"
$ESDir = "C:\1_PDF\ES\"
powershell

1 个回答

  1. Best Answer

    如果我理解正确，那么这应该对你有用：

    $WorkDir = "C:\1_PDF\source\"
$ESDir   = "C:\1_PDF\ES\"

# get an array of the last four digits from the pdf files in $WorkDir
$LastFour = (Get-ChildItem -Path $WorkDir -Filter '*.pdf' -File | 
    Where-Object { $_.BaseName -match '\d{4}$' } | 
    Select-Object @{Name = 'LastFour'; Expression = { $_.BaseName -replace '.*(\d{4})$', '$1' }}).LastFour

# now do the same for files in $ESDir and see if their last four digits can be found in the $LastFour array
Get-ChildItem -Path $ESDir -Filter 'e00*.pdf' -File | 
    Where-Object { $LastFour -contains ($_.BaseName -replace '.*(\d{4})$', '$1') } |
    Move-Item -Destination $WorkDir -Force

    正则表达式详细信息：

    .              Match any single character that is not a line break character
   *           Between zero and unlimited times, as many times as possible, giving back as needed (greedy)
(              Match the regular expression below and capture its match into backreference number 1
   \d          Match a single digit 0..9
      {4}      Exactly 4 times
)
$              Assert position at the end of the string (or before the line break at the end of the string, if any)
    • 4

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