如何用引号替换文本

Question

我需要将' ",'替换为'",' 。 我需要删除所有空间，但不能删除Abc CDE的空间。 在每行的末尾还有一个要删除的空间。

我正在尝试Powershell，但这不起作用：

set "search=' ",'"
set "replace='",'"
:DoReplace
echo ^(Get-Content "aaa.TXT"^) ^| ForEach-Object { $_ -replace "%search%", "%replace%" } ^| Set-Content "New.txt">Rep.ps1
Powershell.exe -executionpolicy ByPass -File Rep.ps1

这是我使用的示例：

"0","46","","","","Abc CDE ApS                   ","","","","","81602832            ","","","","","","","","","","" 
"0","46","","","","Abc CDE ApS                   ","","","","","81602832            ","","","","","","","","","","" 
"0","46","","","","John Stewart                  ","","","","","85505637            ","","","","","","","","","","" 

Answer 1

在PowerShell中，您可以使用正则表达式替换，如下所示：

(Get-Content 'aaa.txt') -replace ' +(",)','$1' | Set-Content 'aaa.txt'

但更干净的方法是将文件导入为CSV并从每一列中修剪尾随空格，因为无论如何该文件似乎都是CSV：

$csv = 'aaa.txt'
$outfile = 'bbb.txt'

# generate artificial headers
$cnt = @((Get-Content $csv -TotalCount 1) -split '","').Count
$headers = 1..$cnt | ForEach-Object { [string][char]($_+64) }

Import-Csv $csv -Header $headers | ForEach-Object {
  foreach ($prop in $_.PSObject.Properties) {
    $_.$($prop.Name) = $prop.Value.Trim()
  }
  $_
} | ConvertTo-Csv -NoType | Select-Object -Skip 1 | Out-File $outfile

话虽如此，对于批处理方法（您应该在问题中提到的），仅使用Windows版本的sed通常会更简单：

sed -i "s/ \+\",/\",/g" aaa.txt

Answer 2

这就是你想要的吗？

$a = '"0","46","","","","Abc CDE ApS                   ","","","","","81602832            ","","","","","","","","","","" '

# delete all ' "'
While($a -like '* "*')
{
    $a = $a -replace ' "', '"'
}

# delete last character
$a = $a.subString(0,$a.length-1)

# whrite it into the console
echo ""
echo $a