Shell Programming and Scripting

I need a help on my shell script. Below is my shell script which transfers the file from one server to another.

Code:

#!/bin/bash
echo "Please enter id no : "
read input_variable
echo "You entered: $input_variable"
HOST=xxxx
USER=xx
PASSWORD=xxx
ftp -inv $HOST <<EOF
user $USER $PASSWORD
cd /wpath/to/copy/files/$input_variable/inputs/final/
mput x.csv
bye
EOF

The shell script is working fine and it is copying the file X.csv once we enter id no which is present in remote server. However I have certain issues which is listed below -


1.id no should be of 6 characters (like M000001).
2.When I enter the correct id, the script is copying the file.However when i enter wrong id eg. M000050 which is not present in remote server, then also it is showing the file is copied. But I don't have any idea where it is copying the file.
3.I need to create the directory /final/ if it doesn't exit in remote machine. the path till inputs will be present in remote server.