Filter curl header output in verbose mode

Try this:

curl -vs -o /dev/null http://somehost/somepage 2>&1

That will suppress the progress meter, send stdout to /dev/null and redirect stderr (the -v output) to stdout.

You can use a batch file

@echo off
    setlocal enableextensions disabledelayedexpansion

    rem Just to test - Generate a file with URLs
    > ".\urls.txt" (
        echo http://superuser.com
        echo http://www.google.com
    )

    > ".\testResults.txt" (
        for /f "useback delims=" %%u in (".\urls.txt") do (
            set "statusCode="
            echo([%%u]
            for /f "tokens=1,2 delims=#" %%a in ('
                curl -w "##%%{time_connect}##." -I -s --url "%%~u"
                ^| findstr /l /b /c:"HTTP/" /c:"##"
            ') do if "%%b"=="." (
                setlocal enabledelayedexpansion
                echo(    !statusCode! - %%a
                endlocal
            ) else (
                set "statusCode=%%a"
            )
        )
    )

Just two nested loops. The first iterates over the URLs file and the second executes and processes the output of the curl command.

The output of curl command is filtered with findstr to retrieve only the lines with the status code and the time to connect (the output string in -w has been modified to locate this data in the output)