写的一个oracle安装前的准备的脚本，大家可以拿去修改修改使用

#!/bin/bash

# echo "拷贝文件:"
# read -p "please input the server you share your os installation media and oracle software:" server
# mkdir /installyationMedia
# scp root@${server}:/iso/* /installationMedia
# if [ -e /installationMedia/*.iso ]{
# echo "文件拷贝成功。"
# }else{
# echo "操作系统文件拷贝不成功"
# }

echo "**********************Mount the iso******************************"
mount -o loop /tmp/rhel-server-6.0-x86_64-dvd.iso /media
cat >/etc/yum.repos.d/cd.repo<[cd]
name=cd.repo
baseurl=file:///media/Server
enabled=1
gpgcheck=0
EOF
yum clean
yum update
if [[ $? -eq 0 ]]; then
echo "Yum repo configure success!"
else
echo "Yum repo configure failure!"
fi

echo "**********************Verify the dependency packages**************************"
for i in `cat package.txt`; do
rpm -qa | grep ${i}
if [[ $? -eq 0 ]]; then
echo "${i} have been installed !" | tee -a log.txt
else
yum -y install ${i}*
if [[ $? -eq 0 ]]; then
echo "${i} Install Success;" | tee -a log.txt
else
echo "${i} install failure" | tee -a log.txt
fi
fi
done

echo "**********************unzip the packages*****************************"
if [[ -d /installationMedias/database ]]; then
echo "Database Installation File have been created!"
else
for i in `ls -l /installationMedias/linux*.zip | awk '{print $9}'`; do
unzip ${i} -d /installationMedias
done
fi

echo "************************Environment Prepare*******************************"
if [[ -d /u01/app ]]; then
echo "/u01/app Directory Have Been Created!"
else
mkdir -p /u01/app
fi

if [[ -z `cat /etc/group | grep dba` ]]; then
groupadd dba
else
echo "dba group have been created" | tee log.txt
fi
if [[ -z `cat /etc/group | grep oinstall` ]]; then
groupadd oinstall
else
echo "dba group have been created" | tee log.txt
fi
if [[ -z `id oracle` ]]; then
useradd -g oinstall -G dba oracle
else
echo "user oracle have been created" | tee log.txt
fi
chown -R oracle:oinstall /u01
chmod -R 755 /u01

echo "**************************kernel parameter**********************************"
cat >>/etc/sysctl.conf<fs.aio-max-nr = 1048576
fs.file-max = 6815744
kernel.shmall = 2097152
kernel.shmmax = 536870912
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 = 1048586
EOF
/sbin/sysctl -p
echo "change User limts"
cat >>/etc/security/limits.conf<oracle soft nproc 2047
oracle hard nproc 16384
oracle soft nofile 1024
oracle hard nofile 65536
EOF
cat >>/etc/pam.d/login<session required pam_limits.so
EOF
cat >>/etc/profile<if [ $USER = "oracle" ]; then
if [ $SHELL = "/bin/ksh" ]; then
ulimit -p 16384
ulimit -n 65536
else
ulimit -u 16384 -n 65536
fi
fi
EOF
cat >>/home/oracle/.bash_profile<export ORACLE_BASE=/u01/app/oracle
export ORACLE_HOME=$ORACLE_BASE/product/11.2.0/dbhome_1
export ORACLE_SID=orcl
export PATH=$ORACLE_HOME/bin:$PATH:$HOME/bin
EOF

su - oracle<source ~/.bash_profile
/installationMedias/database/runInstaller
EOF