The Shell script keeps hanging

Question

Hello,
I have the following shell script and when i execute, it keeps hanging and nothing happens
Please let me know.
Requirement is to read data from file and pass it to the sql and create files as shown.
code
#!/bin/sh
while read user.dat
do
echo "user = $1 email = $2"
done
sqlplus -S /NOLOG << EOF
connect username/pwd@schema
select user_name,count(*) from apps.fnd_user
where 1=1 and user_name ('$1') and email_address ('$2')
group by user_name;
EOF
if [ $? -ne 0 ]
then
% cat > user_exist
else
% cat > user_notexist
fi
exit 0
Data File
rsreenivasa null

Answer 1

Well, youy have many problems here:
while read user.dat
do
echo "user = $1 email = $2"
done
The "user.dat" string is an invalid variable name, so this loop never runs.
Then, in this sequence:
if  $? -ne 0
then
*% cat > user_exist*
else
*% cat > user_notexist*
fi
The cat(1) commands then copy stdin to either "user_exist" or "user_notexist".
You don't show how you run this command, so we cannot tell what happens exactly.
Please delete everything below the "while read ..." loop. Get that loop working as you expect it should. Then add a few more lines and test those. Build the shell script incrementally, debugging each as you go.
Hint: since this is a shell script, run it like this:
$ sh -x ./myscript arg1 arg2 ...
to see what happens as it happens.
Cheers