Oracle 12cR2 Installation On CentOS-7

wget http://public-yum.oracle.com/public-yum-ol7.repo -O /etc/yum.repos.d/public-yum-ol7.repo
wget http://public-yum.oracle.com/RPM-GPG-KEY-oracle-ol7 -O /etc/pki/rpm-gpg/RPM-GPG-KEY-oracle
yum clean all
yum update
yum install oracle-database-server-12cR2-preinstall -y

mkdir /home/oracle/scripts

cat > /home/oracle/scripts/setEnv.sh <<EOF
# Oracle Settings
export TMP=/tmp
export TMPDIR=\$TMP

export ORACLE_HOSTNAME=oracle12c.local
export ORACLE_UNQNAME=cdb1
export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=\$ORACLE_BASE/product/12.2.0.1/db_1
export ORACLE_SID=cdb1

export PATH=\$PATH:\$ORACLE_HOME/bin

export LD_LIBRARY_PATH=\$ORACLE_HOME/lib:/lib:/usr/lib
export CLASSPATH=\$ORACLE_HOME/jlib:\$ORACLE_HOME/rdbms/jlib
EOF


echo ". /home/oracle/scripts/setEnv.sh" >> /home/oracle/.bash_profile

chown -R oracle.oinstall /home/oracle/scripts
chmod u+x /home/oracle/scripts/*.sh