Shell Programming and Scripting

#!/bin/sh
TERM=vt100
export TERM
WORKDIR=/mnt/sr_scripts/PER
export WORKDIR
cd $WORKDIR
 
DEV="dev" #this is dev environment.
TEST="test" #this is TEST environment.
 
echo "Enter Environment"
read mENV
echo "Enter a valid PERSON_ID for the employee:"
read PID
echo "Display Payroll Element Entries (Y|N):"
read PEE

if [ "$mENV" == "$DEV" ]; then
 sqlplus -silent apps/apps @PER12.sql
 expect "Enter a valid PERSON_ID for the employee:"
 send "$PID"
 expect "Display Payroll Element Entries (Y|N):"
 send "$PEE"
elif [ "$mENV" == "$TEST" ]; then
 sqlplus -silent apps/apps123 @PER12.sql
 expect "Enter a valid PERSON_ID for the employee:"
 send "$PID"
 expect "Display Payroll Element Entries (Y|N):"
 send "$PEE"
fi