安装tomcat脚本

#!/bin/bash
DIR=`pwd`
NAME="mysql-5.6.42-linux-glibc2.12-x86_64.tar.gz"
FULL_NAME=${DIR}/${NAME}
DATA_DIR="/data/mysql"

yum install vim gcc gcc-c++ wget autoconf net-tools lrzsz iotop lsof iotop bash-completion -y
yum install curl policycoreutils openssh-server openssh-clients postfix -y

if [ -f ${FULL_NAME} ];then
echo "安装文件存在"
else
echo "安装文件不存在"
exit 3
fi
if [ -h /usr/local/mysql ];then
echo "Mysql 已经安装"
exit 3
else
tar xvf ${FULL_NAME} -C /usr/local/src
ln -sv /usr/local/src/mysql-5.6.42-linux-glibc2.12-x86_64 /usr/local/mysql
if id mysql;then
echo "mysql 用户已经存在，跳过创建用户过程"
fi
useradd mysql -s /sbin/nologin
if id mysql;then
chown -R mysql.mysql /usr/local/mysql/* -R
if [ ! -d /data/mysql ];then
mkdir -pv /data/mysql /var/lib/mysql && chown -R mysql.mysql /data -R
/usr/local/mysql/scripts/mysql_install_db --user=mysql --datadir=/data/mysql --basedir=/usr/local/mysql/
cp /usr/local/src/mysql-5.6.42-linux-glibc2.12-x86_64/support-files/mysql.server /etc/init.d/mysqld
chmod a+x /etc/init.d/mysqld
cp ${DIR}/my.cnf /etc/my.cnf
ln -sv /usr/local/mysql/bin/mysql /usr/bin/mysql
ln -sv /data/mysql/mysql.sock /var/lib/mysql/mysql.sock
/etc/init.d/mysqld start
else
echo "MySQL数据目录已经存在,"
exit 3
fi
fi
fi