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Genius!
Thanks for helping
It works now.

#!/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"...

awk '/^[1-9]/{print ""}
{gsub("\"", "")
printf"%s,", $0}
END{print ""}' <<EOF | sed 's/,$//'
1,ad,"adc
sdfd",edf
2,asd,"def
fde",asd
EOF

1,ad,adc,sdfd,edf
2,asd,def,fde,asd

This is the...

But sometime it may has CSE9001 only. or CSE1002

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

thanks for replying, I still can't get it work, is there any AWK way to solve the problem?

should be like CSE1001, CSE1002, CSE9001
while read w1
do
read w2
read w3
echo ${w1}${w2}${w3}
done < $tmp

but It doesn't work with only 1 or 2 words, it will be like CSE1001, CSE1002,...

studentNo=$1
tmp=/tmp/acc2courses$ID.$$
grep -w "$studentNo" CSE1001 >/dev/null 2>&1
[ $? -eq 0 ] && echo CSE1001 >>$tmp
grep -w "$studentNo" CSE1002 >/dev/null 2>&1
[ $? -eq 0 ] && echo CSE1002...

Frequently Asked Questions for Assgn 3.
What does the .std_dbrc file contain?
Something like:

STD_DBROOT=${HOME}/class/2031/Assgn3/STD_DB

You do not submit this file, I will be using mine...

1. Student Database
In this assignment you will design a simple file based database. All the files are in
the simplest form of CSV (Comma Separated Values) where every pair of adjacent fields
are...

This is shell programming assignment.
It needs to create a file called .std_dbrc contains
STD_DBROOT=${HOME}/class/2031/Assgn3/STD_DB
(which includes all my simple database files)

and I am...