Shell Programming and Scripting

#!/bin/bash
echo
echo "Your name please."
read STUDENT
echo
echo "Your student ID number please"
read STUDID
echo
echo "Enter submission title please."
read TITLE
echo
echo "Enter submission subtitle please."
read SUBTITLE
echo
echo "Pick course number"
echo
echo "HDWR1000 | PROG1040 | OSYS1000 | SAAD2000"
echo "      DBAS2020 | ICOM1325 | ICOM1200"
read CLASSNUM
echo
echo "Preferred file name?"
read FILENAME
TIM=`date`

	if [ $CLASSNUM=HDWR1000 ]; then
	CLASS=`awk -F":" 'NR==2 {print $1}' < dbase.txt`
		TEACHER=`awk -F":" 'NR==2 {print $2}' < dbase.txt`
		SECTION=`awk -F":" 'NR==2 {print $5}' < dbase.txt`
	elif [ $CLASSNUM=PROG1040 ]; then
	CLASS=`awk -F":" 'NR==3 {print $1}' < dbase.txt`
		TEACHER=`awk -F":" 'NR==3 {print $2}' < dbase.txt`
		SECTION=`awk -F":" 'NR==3 {print $5}' < dbase.txt`
	elif [ $CLASSNUM=OSYS1000 ]; then
	CLASS=`awk -F":" 'NR==5 {print $1}' < dbase.txt`
		TEACHER=`awk -F":" 'NR==5 {print $2}' < dbase.txt`
		SECTION=`awk -F":" 'NR==5 {print $5}' < dbase.txt`
	elif [ $CLASSNUM=SAAD2000 ]; then
	CLASS=`awk -F":" 'NR==4 {print $1}' < dbase.txt`
		TEACHER=`awk -F":" 'NR==4 {print $2}' < dbase.txt`
		SECTION=`awk -F":" 'NR==4 {print $5}' < dbase.txt`
	elif [ $ClassNum=DBAS2020 ]; then
	CLASS=`awk -F":" 'NR==1 {print $1}' < dbase.txt`
		TEACHER=`awk -F":" 'NR==1 {print $2}' < dbase.txt`
		SECTION=`awk -F":" 'NR==1 {print $5}' < dbase.txt`
	elif [ $CLASSNUM=ICOM1325 ]; then
	CLASS=`awk -F":" 'NR==6 {print $1}' < dbase.txt`
		TEACHER=`awk -F":" 'NR==6 {print $2}' < dbase.txt`
		SECTION=`awk -F":" 'NR==6 {print $5}' < dbase.txt`
	elif [ $CLASS=ICOM1200 ]; then
	CLASS=`awk -F":" 'NR==7 {print $1}' < dbase.txt`
		TEACHER=`awk -F":" 'NR==7 {print $2}' < dbase.txt`
		SECTION=`awk -F":" 'NR==7 {print $5}' < dbase.txt`
	else echo "Please restart script."
fi

sed "s/DATETIME/$TIM/" <template.txt >$FILENAME.txt
sed "s/SUBTITLE/$SUBTITLE/" $FILENAME.txt
sed "s/CLASS/$CLASS/" $FILENAME.txt
sed "s/STUDENT/$STUDENT/" $FILENAME.txt
sed "s/STUDID/$STUDID/" $FILENAME.txt
sed "s/TITLE/$TITLE/" $FILENAME.txt
sed "s/SECTION/$SECTION/" $FILENAME.txt  
sed "s/TEACHER/$TEACHER/" $FILENAME.txt


echo
echo "Thank you! Your cover page $FILENAME.txt has been created."
echo

DBAS2020:Brian Shewan:Brad Feicht:W0203027:702:
HDWR1000:Todd Verge:Brad Feicht:W0203027:702:
PROG1040:Karen Gillespie:Brad Feicht:W0203027:702:
SAAD2000:David Russell:Brad Feicht:W0203027:702:
OSYS1000:Hal O'Connell:Brad Feicht:W0203027:702:
ICOM1325:Hal O'Connell:Brad Feicht:W0203027:702:
ICOM1200:Scott Lessel:Brad Feicht:W0203027:702:

#! /bin/bash
# Reads the contents of the file and put it in arrays
i=0
OLDIFS=$IFS; IFS=":"
while read C T D E S
do
	((i++))
	CLASS[$i]=$C
	TEACHER[$i]=$T
	SECTION[$i]=$S
done < dbase.txt
IFS=$OLDIFS
echo
read -p "Your name please " STUDENT
echo
read -p "Your student ID number please " STUDID
echo
read -p "Enter submission title please " TITLE
echo
read -p "Enter submission subtitle please " SUBTITLE
echo
for ((i=1; i<${#CLASS[@]}; i++))
do	echo "$i) ${CLASS[$i]}"
done
read -p "Pick course number " i
echo
read -p "Preferred file name? " FILENAME
echo
if sed -e "s/DATETIME/$(date)/" -e "s/SUBTITLE/$SUBTITLE/" -e "s/CLASS/${CLASS[$i]}/" -e "s/STUDENT/$STUDENT/" -e "s/STUDID/$STUDID/" -e "s/TITLE/$TITLE/" -e "s/SECTION/${SECTION[$i]}/" -e "s/TEACHER/${TEACHER[$i]}/" template.txt > $FILENAME.txt
then
	echo "Thank you! Your cover page $FILENAME.txt has been created."
	cat $FILENAME.txt
else
	echo "An error occured"
fi