Menu to Oracle Database Environment

# setting up menu for ORACLE INSTANCES

export PS1='[\u@\h \W]\$'

SID_CHOICE=0

while [ $SID_CHOICE -lt 1 ] || [ $SID_CHOICE -gt 3 ]

do

echo "which ORACLE_SID?"

echo "1 - DEVTEST"

echo "2 - DEVTEST2"

echo "3 - DEVTEST3"

read SID_CHOICE

done

if [ $SID_CHOICE -eq 1 ]; then

export ORACLE_HOME=/u01/app/oracle/product/11.2.0.4/dbhome_1

export ORACLE_SID=DEVTEST

export ORACLE_BASE=/u01/app/oracle

PATH=${PATH}:${ORACLE_HOME}/bin

CREATE=/u01/app/oracle/create; export CREATE

elif [ $SID_CHOICE -eq 2 ]; then

export ORACLE_HOME=/u01/app/oracle/product/11.2.0.4/dbhome_1

export ORACLE_SID=DEVTEST2

export ORACLE_BASE=/u01/app/oracle

PATH=${PATH}:${ORACLE_HOME}/bin

CREATE=/u01/app/oracle/create; export CREATE

elif [ $SID_CHOICE -eq 3 ]; then

export ORACLE_HOME=/u01/app/oracle/product/12.1.0.1/dbhome_1

export ORACLE_SID=DEV12142

export ORACLE_BASE=/u01/app/oracle

PATH=${PATH}:${ORACLE_HOME}/bin

CREATE=/u01/app/oracle/create; export CREATE

fi

export ORACLE_SID

echo "ORACLE_SID set to $ORACLE_SID"

PS1="[\u@\h \W]\$"

export PS1

which ORACLE_SID?

1 - DEVTEST

2 - DEVTEST2

3 - DEVTEST3