<# :
cls
@echo off
cd /d "%~dp0"
powershell -NoProfile -ExecutionPolicy bypass "Invoke-Command -ScriptBlock ([ScriptBlock]::Create([IO.File]::ReadAllText('%~f0',[Text.Encoding]::Default))) -Args '%~dp0'"
pause
exit
#>
$word="qwert";
$path=$args[0].trimend('\');
$newpath=$path+'\#result';
$files=@(dir -liter $path -recurse|?{('.txt' -eq $_.Extension) -and ($_ -is [System.IO.FileInfo])});
$enc=[Text.Encoding]::Default;$regstr=[regex]::Escape($word)+'[\s\S]+?(?='+[regex]::Escape($word)+'|$)';
for($i=0;$i -lt $files.length;$i++){
    write-host $files[$i].FullName;
    $newfolder=$newpath+'\'+$files[$i].Directory.Name;
    if(-not (test-path -liter $newfolder)){[void](md $newfolder -force);};
    $text=[IO.File]::ReadAllText($files[$i].FullName,$enc);
    $m=[regex]::matches($text,$regstr);$n=1;
    foreach($it in $m){
        $newfile=$newfolder+'\'+$files[$i].BaseName+'_'+$n.toString()+$files[$i].Extension;
        [IO.File]::WriteAllText($newfile, $it.groups[0].value, $enc);
        $n++;
    };
}
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