RHEL6 preinstall for oracle

#!/bin/sh
####Author: Majesty
####RHCE OCP
####Mail: [email protected]
####blog: 51cto emperor_majesty http://

####1
####create user and group and environment var.
groupadd oinstall
groupadd dba
useradd -g oinstall -G dba -c "Oracle" -d  /home/oracle   oracle


v_oracle=$( grep en_US /home/oracle/.bash_profile )
if [ "$v_oracle" == '' ]
then
rm -rf /home/oracle/.bash_profile

echo "if [ -f ~/.bashrc ]; then" >> /home/oracle/.bash_profile
echo "    . ~/.bashrc"  >> /home/oracle/.bash_profile
echo "fi" >> /home/oracle/.bash_profile
echo " " >> /home/oracle/.bash_profile
echo " " >> /home/oracle/.bash_profile
echo "oracle" | passwd --stdin oracle
echo "export ORACLE_BASE=/u01/app/oracle" >> /home/oracle/.bash_profile
echo 'export ORACLE_HOME=$ORACLE_BASE/product/10.2.0/db_1' >> /home/oracle/.bash_profile
echo "export ORACLE_SID=orcl"  >> /home/oracle/.bash_profile
echo 'export LD_LIBRARY_PATH=$ORACLE_HOME/lib'  >> /home/oracle/.bash_profile
echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/lib:/usr/X11R6/lib'  >> /home/oracle/.bash_profile
echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/jdk/jre/lib/i386'  >> /home/oracle/.bash_profile
echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/jdk/jre/lib/i386/server'  >> /home/oracle/.bash_profile
echo 'export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/rdbms/lib'  >> /home/oracle/.bash_profile
echo 'export CLASS_PATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib'  >> /home/oracle/.bash_profile
echo 'export CLASS_PATH=$CLASS_PATH:$ORACLE_HOME/rdbms/jlib'  >> /home/oracle/.bash_profile
echo 'export CLASS_PATH=$CLASS_PATH:$ORACLE_HOME/network/jlib'  >> /home/oracle/.bash_profile
echo 'export TNS_ADMIN=$ORACLE_HOME/network/admin'  >> /home/oracle/.bash_profile
echo "export NLS_LANG=american_america.AL32UTF8" >> /home/oracle/.bash_profile
echo "export ORACLE_TERM=xterm" >> /home/oracle/.bash_profile
echo "export EDITOR=vi" >> /home/oracle/.bash_profile
echo 'export PATH=$ORACLE_HOME/bin:$PATH' >> /home/oracle/.bash_profile
echo "export LANG=en_US" >> /home/oracle/.bash_profile

else
  echo "your "/home/oracle/.bash_profile" already was setted."
fi

####2
####modify the release and create direcotry
v_release=$( grep 4 /etc/system-release )
if [ "$v_release" == '' ]
then
rm -rf /etc/system-release
echo "Red Hat Enterprise Linux Server release 4 (Santiago)" > /etc/system-release
mkdir -p /u01/app/oracle
chown -R oracle:oinstall /u01
chown oracle:oinstall /home/oracle
else
  echo "your release had modified."
fi

v_release2=$( grep 4 /etc/redhat-release )
if [ "$v_release2" == '' ]
then
rm -rf /etc/redhat-release
echo "Red Hat Enterprise Linux Server release 4 (Santiago)" > /etc/redhat-release
else
  echo "your release had modified."
fi


####3
####limit the oracle process.

v_limit=$( grep 65536 /etc/security/limits.conf )
if [ "$v_limit" == ''  ]
then
cp /etc/security/limits.conf /etc/security/limits.conf.bak
echo "oracle soft nproc 2047" >>/etc/security/limits.conf
echo "oracle hard nproc 16384" >>/etc/security/limits.conf
echo "oracle soft nofile 1024" >>/etc/security/limits.conf
echo "oracle hard nofile 65536" >>/etc/security/limits.conf
else
  echo "/etc/security/limits.conf had modified."
fi

v_pam=$( grep pam_limits.so  /etc/pam.d/login )
if [ "$v_pam" == '' ]
then
cp /etc/pam.d/login /etc/pam.d/login.bak
echo "session required /lib/security/pam_limits.so" >>/etc/pam.d/login
echo "session required pam_limits.so" >>/etc/pam.d/login
else
 echo "/etc/pam.d/login had modified."
fi

v_profile=$( grep 'ulimit -n 65536'  /etc/profile )
if [ "$v_profile" == '' ]
then
cp /etc/profile /etc/profile.bak
echo 'if [ $USER = "oracle" ]; then' >>  /etc/profile
echo 'if [ $SHELL = "/bin/ksh" ]; then' >> /etc/profile
echo 'ulimit -p 16384' >> /etc/profile
echo 'ulimit -n 65536' >> /etc/profile
echo 'else' >> /etc/profile
echo 'ulimit -u 16384 -n 65536' >> /etc/profile
echo 'fi' >> /etc/profile
echo 'fi' >> /etc/profile
else
  echo "/etc/profile had modified."
fi


v_sysctl=$( grep net.core.rmem_max /etc/sysctl.conf  )
if [ "$v_sysctl" == '' ]
then
cp /etc/sysctl.conf /etc/sysctl.conf.bak
echo "fs.file-max = 65536" >> /etc/sysctl.conf
echo "kernel.sem = 250 32000 100 128" >> /etc/sysctl.conf
echo "kernel.shmall = 2097152" >> /etc/sysctl.conf
echo "kernel.shmmni = 4096" >> /etc/sysctl.conf
echo "kernel.shmmax = 2147483648" >> /etc/sysctl.conf
echo "net.core.rmem_default=1048576" >> /etc/sysctl.conf
echo "net.core.rmem_max=262144" >> /etc/sysctl.conf
echo "net.core.wmem_default=262144" >> /etc/sysctl.conf
echo "net.core.wmem_max=262144" >> /etc/sysctl.conf
echo "net.ipv4.ip_local_port_range = 1024 65000" >> /etc/sysctl.conf
echo "Modifing the /etc/sysctl.conf has been succeed."
echo "Now make the changes take effect....."
sysctl -p
else
   echo "/etc/sysctl.conf had modified."
fi

v_group=$( grep 'root:x:0:root,oracle' /etc/group )
if [ "$v_group" == '' ]
then
echo "please modify add oracle to root group"
echo "cat /etc/group"
sed -i 's#root:x:0:root#root:x:0:root,oracle#g' /etc/group
else
  echo "oracle was already the memeber of root group."
fi


####4
####install all required packages.
rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
cd /mnt/Packages
yum -y localinstall  libXp-1.0.0-15.1.el6*
yum -y localinstall  libXp-devel-1.0.0-15.1.el6*
yum -y localinstall  openmotif-2.3.3-4.el6*
yum -y localinstall  openmotif-devel-2.3.3-4.el6*
yum -y localinstall  gcc-4.4.6-3.el6.x86_64.rpm
yum -y localinstall  libaio-0.3.107-10.el6*
yum -y localinstall  libaio-devel-0.3.107-10.el6*
yum -y localinstall  make-3.81-19.el6.x86_64.rpm
yum -y localinstall  glibc-2.12-1.47.el6*
yum -y localinstall  compat-libstdc++*
yum -y localinstall  compat-db-4.6.21-15.el6*
yum -y localinstall  compat-gcc-34-c++-3.4.6-19.el6.x86_64.rpm
rpm -q gcc make binutils openmotif

yum -y install xterm.x86_64
yum -y install libXp.i686
yum -y install libXt.i686
yum -y install libXtst.i686 libXtst.x86_64
yum -y install make.x86_64
yum -y install gcc.x86_64
yum -y install binutils.x86_64
yum -y install libaio.i686
yum -y install libstdc++-devel.i686
yum -y install glibc-devel.i686
yum -y install compat-libstdc*
yum -y groupinstall "Chinese Support"
yum -y install  cjkuni-fonts* xorg-x11-*