Simple shell script for reading and writing

$ cat > menuui
#
# 
# 
#
while :
 do
    clear
    echo "-------------------------------------"
    echo " Main Menu "
    echo "-------------------------------------"
    echo "[1] Check if card is detected"
    echo "[2] Crack card with mfoc"
    echo "[3] Read card with known keys"
    echo "[4] Write card"
    echo "[5] Help"
    echo "[6] Exit/Stop"
    echo "======================="
    echo -n "What do you want? [1-6]: "
    read yourch
    case $yourch in
     1) nfc-list;
    echo "Press a key . . .";
    read ;;
     2) echo -n "Enter name dump file: " ; 
    read fdump; 
    echo -n "Enter number of probes: (600 is good)";
    read fprobes;
    echo -n "Enter tolerance: (Default is 20 but if it crashes put it on about 2)";
    read ftol;
    gnome-terminal --tab -e "mfoc -P $fprobes -T $tol -O $fdump"; 
    read ;;
     3) echo -n "Enter name dump file: " ;
    read fdump;
    echo -n "Enter name key file: ";
    read fkey;
    nfc-mfclassic r b $fdump $fkey;
    echo "Press a key . . .";
    read ;;
     4) echo -n "Enter name of file to be written: ";
    read fdump;
    echo -n "Enter name of key file: ";
    read fkey;
    nfc-mfclassic w b $fdump $fkey;
    echo "Press a key . . .";
    read ;;
     5) echo "-------------------------------------";
    echo "Help";
    echo "-------------------------------------";
    echo "**Cracking a card with mfoc";
    echo "Use this for a new card";
    echo "**Read a card with known keys";
    echo "Use this if you have cracked the card before.";
    echo "For key file give the name of and old dump of this card.";
    echo "**Write a card";
    echo "For key file give the name of the original dump of this card.";
    echo "-------------------------------------";
    echo "Press a key. . .";
    read ;;
     6) exit 0 ;;
     *) echo "Very funny, choose something that does exist!";
        echo "Press a key. . ." ; 
    read ;;
 esac
done

chmod 755 "name of the script"
./"name of the script"