Question

我是ShellScript的新手。这是我删除＆＃39; ONEWORD＆＃39;的代码。从提到的路径：如果我不在文件名中引入空格，它的工作正常。但是如果文件名中有空格，则会抛出以下错误：

计划：

call:DoReplace "ONEWORD" "" "C:\Users\yeturukr\Desktop\Test\Dest\CMD COMET.txt" "C:\Users\yeturukr\Desktop\Test\Dest\CMD COMET.txt"
  exit /b

  :DoReplace
  echo ^(Get-Content "%3" ^) ^| ForEach-Object { $_ -replace %1, %2 } ^| Set-Content %4 >Rep.ps1
  Powershell.exe -executionpolicy ByPass -File Rep.ps1
  if exist Rep.ps1 del Rep.ps1
  echo Done
  pause

错误：

Get-Content：无法将参数绑定到参数＆＃39; Path＆＃39;因为它是   空洞的。在C：\ Users \ yeturukr \ Desktop \ Test \ Rep.ps1：1 char：13   +（Get-Content＆lt;＆lt;＆lt;＆lt;＆lt;＆＃34;＆＃34; C：\ Users \ yeturukr \ Desktop \ Test \ Dest \ CMD COMET_APIN002234   _20161025_0745_1.txt＆＃34;＆＃34; ）| ForEach-Object {$ _ -replace＆＃34; BARCAP＆＃34;，＆＃34;＆＃34; } | Set-Co ntent＆＃34; C：\ Users \ yeturukr \ Desktop \ Test \ Dest \ CMD   COMET_APIN002234_20161025_0745_1 .txt＆＃34;       + CategoryInfo：InvalidData：（:) [Get-Content]，ParameterBinding ValidationException       + FullyQualifiedErrorId：ParameterArgumentValidationErrorEmptyStringNotAl
  lowed，Microsoft.PowerShell.Commands.GetContentCommand

Answer 1

echo Get-Content "%3"会产生Get-Content ""…\CMD COMET.txt""，其中加倍双引号（无效的路径规范）。

按如下方式申请Parameter Extensions：

:DoReplace
echo ^(Get-Content "%~3" ^) ^| ForEach-Object { $_ -replace "%~1", "%~2" } ^| Set-Content "%~4" >Rep.ps1

现在您可以完全控制使用双引号。

编辑：制作了一个复杂的示例脚本，用于证明以上工作原理：

@ECHO OFF >NUL
SETLOCAL EnableExtensions DisableDelayedExpansion

set "_fileIn=%userprofile%\Desktop\Test\Dest\CMD COMET.txt"
set "_fileOu=%userprofile%\Desktop\Test\Dest\CMD COMET.txt"

rem csteate sample files
md "%userprofile%\Desktop\Test\Dest\" 2>NUL
 >"%_fileOu%" type NUL
 >"%_fileIn%" echo 1st line 
>>"%_fileIn%" echo 2nd oneword
>>"%_fileIn%" echo 3rd line
type "%_fileIn%"

call:DoReplace "ONEWORD" "" "%_fileIn%" "%_fileOu%"

  type "%_fileOu%"
  exit /b

:endlocal
ENDLOCAL
goto :eof

  :DoReplace
  echo ^(Get-Content "%~3" ^) ^| ForEach-Object { $_ -replace "%~1", "%~2" } ^| Set-Content "%~4" >Rep.ps1
  Powershell.exe -executionpolicy ByPass -File Rep.ps1
  REM type Rep.ps1
  if exist Rep.ps1 del Rep.ps1
  echo Done
  goto :eof

<强>输出：

==> D:\bat\SO\40233525.bat
1st line
2nd oneword
3rd line
Done
1st line
2nd
3rd line

==>

Get-Content：无法将参数绑定到参数＆＃39; Path＆＃39;因为它是空的

1 个答案: