Parse flags passed into a script and provide a way to enter info, password username

bash_flags_and_input_variables.sh

while test $# -gt 0; do
  case "$1" in
    -h|--help)
      echo "[options] test_file    test_file is name of individual test file you want to run"
      echo " "
      echo "options:"
      echo "-h, --help             show brief help"
      echo "--headless=BOOLEAN     for running tests in your chrome browser, only run one test at a time"
      exit 0
      ;;
    --headless*)
      export HEADLESS=`echo $1 | sed -e 's/^[^=]*=//g'`
      shift
      ;;
    *)
      TEST_TARGET=$1
      break
      ;;
  esac
done

read -p "Jules username: " USER
read -s -p "Password for $USER: " PASS

if [[ $HEADLESS == "false" && $TEST_TARGET == "" ]]; then
  echo 'Headfull only supports one test file at a time. Please specify a file name as the last argument'
  exit 0
elif [[ $HEADLESS == "false" && $TEST_TARGET ]]; then
  # launches connects to chrome
  # https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging/Chrome_Desktop
  /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome \
  --remote-debugging-port=9222 --no-first-run --no-default-browser-check \
  --user-data-dir=$(mktemp -d -t 'chrome-remote_data_dir') &
if