#!/bin/bash
#############################################################
# Created on: 2/17/09
# Last Updated: 07/09/09
# Version 2.1.6
#############################################################
#clear the screen
clear
#check for root user (this script must be run as root)
if [[ $EUID -ne 0 ]]; then
echo “This script must be run as root” 1>&2
exit 1
fi
# Confirm Start of Installation
echo -n “Are you sure that you want to continue? [y/n] ”
read resp
if [ $resp != “Y” ] || [ $resp != “y” ]
then
echo “Exiting Installation”
exit
fi
# Create the Oracle User
echo “Creating ‘oracle’ user and groups”
echo “check if group oinstall exist:”
egrep “oinstall” /etc/group >/dev/null
if [ $? -eq 0 ]; then
echo “group: oinstall already exists”
else
groupadd oinstall
echo “group: oinstall added.”
fi
echo “check if dba group exists:”
egrep “dba” /etc/group >/dev/null
if [ $? -eq 0 ]; then
echo “group: dba already exists”
else
groupadd dba
echo “group: dba added.”
fi
echo “check to see if ‘oracle’ exists”
egrep “oracle” /etc/passwd >/dev/null
if [ $? -eq 0 ]; then
echo “oracle already exists.”
else
useradd -g oinstall -G dba -d /home/oracle -m -s /bin/bash oracle
echo “user: oracle added.n”
passwd oracle
fi
# Creating Oracle Base Directory
echo “Create Oracle_Base directory”echo “Create Oracle_Base directory”
echo -e “Please enter the full of the Oracle Home”
read oh
mkdir -p $oh
chown -R oracle:oinstall $oh
# Kernel Parameter Modifications.
echo “Making kernel changes permanant by modifying /etc/sysctl.conf”
echo “# Kernel parameters required by Oracle” >> /etc/sysctl.conf
echo “kernel.msgmni = 2878″ >> /etc/sysctl.conf
echo “kernel.msgmax = 8192″ >> /etc/sysctl.conf
echo “kernel.msgmnb = 65535″ >> /etc/sysctl.conf
echo “kernel.sem = 256 32000 100 142″ >> /etc/sysctl.conf
echo “kernel.shmall = 2097152″ >> /etc/sysctl.conf
echo “kernel.shmmax = 4294967295″ >> /etc/sysctl.conf
echo “kernel.shmmni = 4096″ >> /etc/sysctl.conf
echo “fs.file-max = 131072″ >> /etc/sysctl.conf
echo “net.ipv4.ip_local_port_range = 20000 65000″ >> /etc/sysctl.conf
echo “Finished modifying /etc/sysctl.conf”
# Flush the sysctl.conf file after making the above changes.
/sbin/sysctl -p
# change to the oracle home directory
cd /home/oracle
echo “Create Environment source file:”
touch /home/oracle/infra.env
echo “ORACLE_BASE=/opt/oracle; export ORACLE_BASE” >> /home/oracle/infra.env
echo “ORACLE_HOME=$ORACLE_BASE/ias1; export ORACLE_HOME” >> /home/oracle/infra.env
echo “LD_LIBRARY_PATH=$ORACLE_HOME/lib:$ORACLE_HOME/lib32:/lib:/user/local/bin; export LD_LIBRARY_PATH” >> /home/oracle/infra.env
echo “ORACLE_SID=orcl; export ORACLE_SID” >> /home/oracle/infra.env
echo “PATH=/usr/bin:$ORACLE_HOME/bin:$ORACLE_HOME/opmn/bin:$PATH; export PATH” >> /home/oracle/infra.env
# Change ownership of infra.env to oracle:oinstall
chown oracle:oinstall /home/oracle/infra.env
clear
echo -e “Oracle Environment Setup is Complete.”
exit 1