Hi friend, here is a script that helps in creating the executable you'll need. So, change the directory (cd) to the directory where the chromedriver is present and then paste this to your console:
echo "running chromedriver --verbose \$*"
\$(dirname \$0)/chromedriver --verbose \$*
chmod +x chromedriververbose
That'll create an executable script called chromedriververbose where you can point your tests rather than just chromedriver.
Alternatively, you can rename chromedriver to chromedriversilent and then call the above script chromedriver and point it to chromedriversilent for drop-in replacement.
Hope this helps :)