Transfer option completed.

ddbank.sh

@@ -71,6 +71,7 @@ list_balance() {
         echo "1) List all users balances."
         echo "2) Exact User Search"
         echo "3) User Search" 
+        echo ""
         echo "0) Go back."
         echo ""
         read -n1 -p "*Balance Menu: Select from the above: " ii
@@ -132,6 +133,18 @@ do
             depo_new_amt=$($db_conn "select balance + '$depo_amt' from balance where id = '$depo_user_id';" | awk 'FNR ==3')
             # Updates the database with the new amount.
             $db_conn "update balance set balance = '$depo_new_amt' where id = '$depo_user_id';" ;;
+        3 ) read -p "Transfer from user: " tran_user1
+            read -p "Transer to user: " tran_user2
+            read -p "Amount to transfer: " tran_amt
+            # Grabs user IDs.
+            tran_user1_id=$($db_conn "select id,username,balance from account join balance using (id) where username='$tran_user1';" | awk 'FNR == 3' | awk -F\| '{print $1}')
+            tran_user2_id=$($db_conn "select id,username,balance from account join balance using (id) where username='$tran_user2';" | awk 'FNR == 3' | awk -F\| '{print $1}')
+           # Does the math to complete the transfer.
+            tran1_new_amt=$($db_conn "select balance - '$tran_amt' from balance where id = '$tran_user1_id';" | awk 'FNR ==3') 
+            tran2_new_amt=$($db_conn "select balance + '$tran_amt' from balance where id = '$tran_user2_id';" | awk 'FNR ==3') 
+            # Updates the database with the new amounts.
+            $db_conn "update balance set balance = '$tran1_new_amt' where id = '$tran_user1_id';" 
+            $db_conn "update balance set balance = '$tran2_new_amt' where id = '$tran_user2_id';" ;;
         4 ) $db_conn "select id,username,balance from account join balance using (id) where username='$LAST_USER';" ;; 
          
                        
@@ -151,7 +164,8 @@ do
     echo "1) Create new user account."
     echo "2) List user accounts."
     echo "3) List user(s) balance."
-    echo "4) Banking (Deposit, withdraw, transfer)"
+    echo "4) Banking Menu (Deposit, withdraw, transfer)"
+    echo ""
     echo "9) Clear contents of screen"
     echo "0) Exit"
     echo ""