Массовая замена определенной строки

$folder = ".\TEST"
$filter = '*.txt'
dir $folder -filter $filter -file|%{
    $file = $_.fullname
    $arr = gc $file -enc 'UTF8'
    $arr[31] = 'new'
    $arr|out-file $file -enc 'UTF8'
}

nvim -es -c 'args * | bufdo 32s/.*/COPYRIGHT 2024/ | update'

(Get-Content file.txt -raw) -replace '(?<=^(.+\n){31})[^\n]+(?=(\n.+)+$)',"новая 32-я строка" | Set-Content file.txt -Nonewline

(ls *.txt).ForEach{wsl -e sed -i '32s/.*/38/' (wsl wslpath ($_ -replace '\\','\\'))}

function ReplaceLineN {
    param (
        [string]$Directory,
        [string]$Replacement,
        [int]$LineNumber
    )
 
    foreach ($f in [System.IO.Directory]::GetFiles($Directory)) {
        $sr = [System.IO.StreamReader]::new($f)
        $tmpFile = New-TemporaryFile 
        $sw = [System.IO.StreamWriter]::new($tmpFile)
        for ($i = 0; $sr.Peek() -GE 0 ; $i++) {
            if ($i -EQ $LineNumber - 1) {
                $null = $sr.ReadLine()
                $sw.WriteLine($Replacement)
            }
            $sw.WriteLine($sr.ReadLine())
            
        }        
        $sr.Close()
        $sw.Close()
        [System.IO.File]::Delete($f)
        [System.IO.File]::Move($tmpFile, $f)
    }
}
 
ReplaceLineN -Directory "c:\tmp" -lineNumber 7 -Replacement "replacement string"