java –version 

rpm -qa|grep java 

rpm -e --nodeps tzdata-java-2012c-1.el6.noarch 
rpm -e --nodeps java-1.7.0-openjdk-1.7.0.45-1.45.1.11.1.el6.x86_64 

mkdir /usr/java 

tar -zxvf jdk-7u71-linux-i586.tar.gz 

vi /etc/profile 
export JAVA_HOME=/usr/java/jdk1.7.0_71 
export CLASSPATH=.:%JAVA_HOME%/lib/dt.jar:%JAVA_HOME%/lib/tools.jar 
export PATH=$PATH:$JAVA_HOME/bin 

source /etc/profile  //或者reboot 

java -version 

tar -zxvf apache-tomcat-7.0.57.tar.gz 

mv apache-tomcat-7.0.57 / 
mv apache-tomcat-7.0.57 tomcat7 

./startup.sh 

service iptables stop 

vi /etc/rs.local 
JAVA_HOME=/usr/java/jdk1.7.0_71 
export JAVA_HOME 
/tomcat7/bin/startup.sh 

rpm -q binutils compat-libcap1 compat-libstdc++-33-3.2.3 gcc gcc-c++ glibc glibc-devel ksh libgcc libstdc++ libstdc++-devel libaio libaio-devel make sysstat 

yum -y install binutils compat-libcap1 compat-libstdc++-33-3.2.3 gcc gcc-c++ glibc glibc-devel ksh libgcc libstdc++ libstdc++-devel libaio libaio-devel make sysstat 

yum -y install libXp 

chkconfig iptables off 

# vi /etc/selinux/config 
SELINUX=disabled 

groupadd oinstall 

groupadd dba 

useradd -g oinstall -G dba oracle 

id oracle 

passwd oracle 

mkdir -p /opt/oracle/ 
mkdir -p /opt/oracle/oraInventory 
chown -R oracle:oinstall /opt/oracle 
chmod -R 775 /opt/oracle 

vi /etc/sysctl.conf 

fs.aio-max-nr = 1048576 
fs.file-max = 6815744 
kernel.shmmni = 4096 
kernel.sem = 250 32000 100 128 
net.ipv4.ip_local_port_range = 9000 65500 
net.core.rmem_default = 262144 
net.core.rmem_max = 4194304 
net.core.wmem_default = 262144 
net.core.wmem_max = 1048576 

# sysctl -p 

vi /etc/security/limits.conf 

oracle soft nproc 2047 
oracle hard nproc 16384 
oracle soft nofile 1024 
oracle hard nofile 65536 

vi /etc/pam.d/login 

session required /lib/security/pam_limits.so 
session required pam_limits.so 

vi /etc/ profile 

if [ $USER = "oracle" ]; then 
if [ $SHELL = "/bin/ksh" ]; then 
ulimit -p 16384 
ulimit -n 65536 
else 
ulimit -u 16384 -n 65536 
fi 
fi 

vi .bash_profile 
ORACLE_BASE=/opt/oracle 
ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1/bin/ （不同版本的oracle安装目录可能不一样，这里是11.2.0） 
ORACLE_SID=SIMS（数据库实例，自己定义） 
LD_LIBRARY_PATH=$ORACLE_HOME/lib 
PATH=$PATH:$ORACLE_HOME/bin:$HOME/bin 

export ORACLE_BASE ORACLE_HOME ORACLE_SID LD_LIBRARY_PATH PATH 

source /home/oracle/.bash_profile 

su - oracle 
$ cd /opt/oracle 
$ unzip linux.11gR2_database_1of2.zip 
$ unzip linux.11gR2_database_2of2.zip 

export LANG=en_US 

cd /opt/oracle/databse 
$ ./runInstaller 

netca 

dbca 

lsnrctl status 

sqlplus / as sysdba 
conn system/123456@SIMS （这里我在创建数据库的时候将所有用户的密码都改成了123456） 

$lsnrctl start 
$sqlplus / as sysdba 
sql>startup 

#vi /etc/oratab 
SIMS:/opt/oracle/product/11.2.0/dbhome_1:Y(N改为Y) 
Esc:wq! 

#vi /opt/oracle/11.2.0/bin/dbstart 
ORACLE_HOME_LISTNER=$ORACLE_HOME(原来为$1) 
Esc:wq! 

#vi /opt/oracle/11.2.0/bin/dbshut 
ORACLE_HOME_LISTNER=$ORACLE_HOME(原来为$1) 
Esc:wq! 

#vi /etc/rc.d/rc.local 

su oracle -lc "/opt/oracle/product/11.2.0/dbhome_1/bin/lsnrctl start" 
su oracle -lc "/opt/oracle/product/11.2.0/dbhome_1/bin/dbstart" 

Esc:wq! 

su root
cd /etc/yum.repos.d/

mv CentOS-Base.repo CentOS-Base.repo.bak

yum makecache

yum update

su root
yum install "@Chinese Support"