在不使用正则表达式的情况下使用 Powershell 替换文件中的多行文本 [英] Replace multiline text in a file using Powershell without using Regex

问题描述

我有以下 Powershell 脚本:

$oldCode = @"<div id="time_estimate"><!-- 一些大桌子-->

"@$newCode = @"<div id="time_estimate"><!-- 嵌套的 div 和 spans --><div id="联系表单"><?php 包含 "contact-form.php";?>

"@ls *.html |foreach{$fileContent = [System.Io.File]::ReadAllText($_.FullName)$newFileContent = $fileContent.Replace($oldCode, $newCode)[System.Io.File]::WriteAllText($_.FullName, $newFileContent)写主机`r`n"写主机已处理 - $($_.Name)...`r`n"}

这似乎并没有取代文本.这是多行字符串的问题，还是 Replace() 方法的限制?我宁愿在不引入正则表达式的情况下进行替换.

解决方案

您使用的是哪个版本的 PowerShell?如果您使用的是 v3 或更高版本，请尝试以下操作:

ls *.html |foreach{$fileContent = Get-Content $_.FullName -Raw$newFileContent = $fileContent -replace $oldCode, $newCodeSet-Content -Path $_.FullName -Value $newFileContent写主机`r`n"写入主机已处理 - $($_.Name)...`r`n"}

I have the following Powershell script:

$oldCode =  @"
            <div id="time_estimate">
                <!-- some large table -->
            </div>
"@

$newCode = @"
            <div id="time_estimate">
                                <!-- nested divs and spans -->
                                <div id="contact-form">

                                        <?php include "contact-form.php"; ?>
                                </div>
                        </div>
"@

ls *.html | foreach { 
        $fileContent = [System.Io.File]::ReadAllText($_.FullName)
        $newFileContent = $fileContent.Replace($oldCode, $newCode)
        [System.Io.File]::WriteAllText($_.FullName, $newFileContent)
        Write-Host  "`r`n"
        Write-Host  "Processed - $($_.Name)...`r`n" }

This doesn't seem to be replacing the text. Is it an issue with the multiline strings, or the limits of the Replace() method? I would prefer to do the replace without bringing in regex.

解决方案

What version of PowerShell are you using? If you're using v3 or higher, try this:

ls *.html | foreach { 
    $fileContent = Get-Content $_.FullName -Raw
    $newFileContent = $fileContent -replace $oldCode, $newCode
    Set-Content -Path $_.FullName -Value $newFileContent
    Write-Host  "`r`n"
    Write-Host  "Processed - $($_.Name)...`r`n" 
}

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