Get Currency

#!/bin/bash
#
_OTKUPEN=$(curl --silent http://www.kb.com.mk/ | grep -i $1 | egrep -o '[0-9]{1,2}\.[0-9]{1,2}' | awk '(NR==2)')
_PRODAZEN=$(curl --silent http://www.kb.com.mk/ | grep -i $1 | egrep -o '[0-9]{1,2}\.[0-9]{1,2}' | awk '(NR==4)')
#
red=$'\033[1;31m'
cyan=$'\033[1;36m'
white=$'\033[1;37m'
#
if [ $# -lt 1 ]
then
    echo "Mnogu argumenti. Nacin na koristenje: $0 [usd|eur|chf|aud]"
    exit 1
fi

case "$1" in

    usd)      echo -e ${white}"-------------------------------------------"
              echo -e ${cyan} "Otkupnata vrednost za $1 e:  ${red} $_OTKUPEN den."
              echo ""
              echo -e ${cyan} "Prodaznata vrednost za $1 e: ${red} $_PRODAZEN den."
              echo -e ${white}"-------------------------------------------"
              ;;
    eur)      echo -e ${white}"-------------------------------------------"
              echo -e ${cyan} "Otkupnata vrednost za $1 e:  ${red} $_OTKUPEN den."
              echo ""
              echo -e ${cyan} "Prodaznata vrednost za $1 e: ${red} $_PRODAZEN den."
              echo -e ${white}"-------------------------------------------"
              ;;
    chf)      echo -e ${white}"-------------------------------------------"
              echo -e ${cyan} "Otkupnata vrednost za $1 e:  ${red} $_OTKUPEN den."
              echo ""
              echo -e ${cyan} "Prodaznata vrednost za $1 e: ${red} $_PRODAZEN den."
              echo -e ${white}"-------------------------------------------"
              ;;
    aud)      echo -e ${white}"-------------------------------------------"
              echo -e ${cyan} "Otkupnata vrednost za $1 e:  ${red} $_OTKUPEN den."
              echo ""
              echo -e ${cyan} "Prodaznata vrednost za $1 e: ${red} $_PRODAZEN den."
              echo -e ${white}"-------------------------------------------"
              ;;
        *)    echo -e ${white}"-------------------------------------------"
              echo -e ${red} "Ne validen vnes. Nacin na koristenje: $0 [usd|eur|chf|aud]"
              echo -e ${white}"-------------------------------------------"
              exit 1
              ;;
esac