gistfile1.txt

#!/usr/bin/env bash

r="\033[31m"
b="\033[1;34m"
g="\033[32m"
w="\033[0m"
bold="\033[1m"
underline="\033[4m"

print_info() { echo -e "$b[ INFO ]$w $1"; }
print_fail() { echo -e "$r[ FAIL ]$w $1"; }
print_ok() { echo -e   "$b[  OK  ]$w $1"; }

while getopts "u:p:" flag
do
case "$flag" in
  u) USERNAME="${OPTARG}" ;;
  p) PASSWORD="${OPTARG}" ;;
esac
done

print_info "Authentication Checker"
echo="================================================"
echo "${USERNAME}"
echo "${PASSWORD}"

$ bash bashtest.sh -u myuser -p #mypass!
bashtest.sh: option requires an argument -- p

[ INFO ] Authentication Checker

[ INFO ] Username is: myuser
[ FAIL ] Please place your password in quotes

$ bash bashtest.sh -u myuser -p "#mypass!"

[ INFO ] Authentication Checker

[ INFO ] Username is: myuser
[ INFO ] Password is: #mypass!