假设你想把它写在同一个文件中，你可以做如下：

Set-Content -Path "C:\temp\Newtext.txt" -Value (get-content -Path "c:\Temp\Newtext.txt" | Select-String -Pattern 'H\|159' -NotMatch)

逃离|使用反勾号的字符

get-content c:\new\temp_*.txt | select-string -pattern 'H`|159' -notmatch | Out-File c:\new\newfile.txt

在这种情况下，不需要Select-String，只需使用Where-Object过滤掉这些行即可

Get-Content C:\new\temp_*.txt |
    Where-Object { -not $_.Contains('H|159') } |
    Set-Content C:\new\newfile.txt

String.Contains执行字符串比较而不是正则表达式比较，因此不需要转义管道字符，而且速度也更快

管道字符|在正则表达式中有特殊的含义。a|b表示“匹配a或b“。如果要匹配文本|字符，则需要对其进行转义：

... | Select-String -Pattern 'H\|159' -NotMatch | ...

另一个写入相同文件的选项，基于现有答案。只需添加括号以在内容发送到文件之前完成操作。

(get-content c:\new\sameFile.txt | select-string -pattern 'H`|159' -notmatch) | Set-Content c:\new\sameFile.txt

这可能是一个很长的路要走围绕一个简单的问题，它确实允许我删除行包含大量的匹配。我没有一个部分匹配，可以使用，并需要它被做超过1000个文件。这篇文章确实帮助我到达我需要的地方，谢谢。

$ParentPath = "C:\temp\test"
$Files = Get-ChildItem -Path $ParentPath -Recurse -Include *.txt
$Match2 = "matchtext1"
$Match2 = "matchtext2"
$Match3 = "matchtext3"
$Match4 = "matchtext4"
$Match5 = "matchtext5"
$Match6 = "matchtext6"
$Match7 = "matchtext7"
$Match8 = "matchtext8"
$Match9 = "matchtext9"
$Match10 = "matchtext10"

foreach ($File in $Files) {
    $FullPath = $File | % { $_.FullName }
    $OldContent = Get-Content $FullPath
    $NewContent = $OldContent `
    | Where-Object {$_ -notmatch $Match1} `
    | Where-Object {$_ -notmatch $Match2} `
    | Where-Object {$_ -notmatch $Match3} `
    | Where-Object {$_ -notmatch $Match4} `
    | Where-Object {$_ -notmatch $Match5} `
    | Where-Object {$_ -notmatch $Match6} `
    | Where-Object {$_ -notmatch $Match7} `
    | Where-Object {$_ -notmatch $Match8} `
    | Where-Object {$_ -notmatch $Match9} `
    | Where-Object {$_ -notmatch $Match10}
    Set-Content -Path $FullPath -Value $NewContent
    Write-Output $File
}

如果你有任何人有这个问题，而做什么建议的Robert Brooker-
*These files have different encodings. Left file: Unicode (UTF-8) with signature. Right file: Unicode (UTF-8) without signature. You can resolve the difference by saving the right file with the encoding Unicode (UTF-8) with signature.*与Set-Content
使用-Encoding UTF8
就像这样

(get-content c:\new\sameFile.txt | select-string -pattern 'H`|159' -notmatch) | Set-Content c:\new\sameFile.txt -Encoding UTF8