Convert findstr batch file to Web Search Box

I have the following code in a command line batch file that I would like to convert to a web application search box. Then display results in a new tab when clicking submit. Everything I've found for search boxes either searches google, searches text on screen, or require creating a database instead of searching for text within various "log" text files.

I'm curious which language would be the best for converting this code to a web search box? Would anyone be able to provide examples in maybe javascript, php, perl, or other language?

Thanks,

set webServerPath=

echo -- Name --

set /p Name=": "

findstr /r /i "%Name%" %webServerPath%\CopiedMovedFiles\ *.txt>%webServerPath%\Found.txt

findstr /r /i "%Name%" %webServerPath%\TarPackages\ *.txt>>%webServerPath%\Found.txt

findstr /r /i "%Name%" %webServerPath%\TaskErrors\ *.txt>>%webServerPath%\Found.txt

Start notepad.exe %webServerPath%\Found.txt

pause