Shell Programming and Scripting

I am getting this clear. what is your line 15 and 17, if possible please post the entire code so that we could help.

#!/bin/bash

. ${HOME}/.std_dbrc
cd $STD_DBROOT
studentNo=$1
tmp=/tmp/acc2courses$ID.$$

grep -w "$studentNo" CSE1001 >/dev/null 2>&1
[ $? -eq 0 ] && tmpString=CSE1001
grep -w "$studentNo" CSE1002 >/dev/null 2>&1
[ $? -eq 0 ] && tmpString="$tmpString", CSE1002 ########Line 15
grep -w "$studentNo" CSE9001 >/dev/null 2>&1
[ $? -eq 0 ] && tmpString="$tmpString", CSE9001 ########Line 17
echo $tmpString


#IN TERMINAL
bash file_name cs012345
#This will return CSE2001 CSE2002 by my database file.
#This script will find student number in my database file to print course #number.

I think the extra space after the tmpString is causing the error.

Code:

tomoo@Tomoo:~$ bash std_db_acc2courses cs123456
std_db_acc2courses: line 15: CSE1002: command not found
std_db_acc2courses: line 17: CSE9001: command not found

Genius!
Thanks for helping
It works now.