CentOS6.5自动化安装LAMP脚本

#!/bin/bash
#date:2014-8-31
#blog:lizhenliang.blog.51cto.com
########## function ##########
depend_pkg ()
{
    yum install gcc gcc-c++ make cmake ncurses-devel libxml2-devel \
    perl-devel libcurl-devel libgcrypt libgcrypt-devel libxslt \
    libxslt-devel pcre-devel openssl-devel wget -y
}
cat </dev/null
    mkdir $MYSQLDIR/etc
    cp support-files/my-medium.cnf $MYSQLDIR/etc/my.cnf
    cp support-files/mysql.server /etc/init.d/mysqld
    rm -rf /etc/my.cnf
    #echo "PATH=$PATH:$MYSQLDIR/bin" >> /etc/profile 
    #. /etc/profile
    chmod +x /etc/init.d/mysqld
    chown -R root.mysql $MYSQLDIR
    chown -R mysql.mysql $MYSQLDIR/data/
    $MYSQLDIR/bin/mysqld_safe --user=mysql&
    $MYSQLDIR/bin/mysqladmin -u root password '123.com'
    $MYSQLDIR/bin/mysql -uroot -p'123.com' -e "show databases;"
    [ $? -eq 0 ] && echo "MySQL install success." || echo "MySQL install failed."
else
    echo "------mysql cmake failed.------"
    exit 1 
fi
;;
3)
########## Install Depend Pkg ##########
depend_pkg;
########## Install GD ##########
yum install gd freetype freetype-devel libpng libpng-devel zlib zlib-devel libjpeg* -y
########## Install PHP ##########
WorkDIR=/usr/local/src
PHPDIR=/usr/local/php5.4
PHPCONF=$PHPDIR/etc/php.ini
cd $WorkDIR
[ -f "php-5.4.31.tar.gz" ] || wget http://cn2.php.net/distributions/php-5.4.31.tar.gz
tar zxvf php-5.4.31.tar.gz 
cd php-5.4.31
./configure -prefix=$PHPDIR \
--with-config-file-path=$PHPDIR/etc \
--with-apxs2=/usr/local/apache2.4/bin/apxs \
--with-mysql=/usr/local/mysql5.5 \
--with-mysqli=/usr/local/mysql5.5/bin/mysql_config \
--enable-soap --enable-bcmath --enable-zip --enable-ftp \
--enable-mbstring --with-gd --with-libxml-dir --with-jpeg-dir \
--with-png-dir --with-freetype-dir --with-zlib \
--with-libxml-dir=/usr --with-curl --with-xsl --with-openssl
make && make install
if [ $? -eq 0 ];then
    cp php.ini-production $PHPCONF
    echo "data.timezone = Asia\Shanghai" >> $PHPCONF
    sed -i 's/upload_max_filesize = 2M/ upload_max_filesize = 50M/g' $PHPCONF
    sed -i 's/display_errors = Off/display_errors = On/g' $PHPCONF
    echo "" > /usr/local/apache2.4/htdocs/index.php
    /etc/init.d/httpd restart 
    /etc/init.d/mysqld restart &>/dev/null
    IP=`ifconfig eth0 |grep "inet addr" |cut -d: -f2 |awk '{print $1}'`
    Urlcode=`curl -o /dev/null -s -w "%{http_code}" $IP/index.php`
    [ $Urlcode -eq 200 ] && echo "PHP install success." || echo "PHP install failed."
    echo "/usr/local/apache/bin/apachectl start" >> /etc/rc.local
    chkconfig mysqld on
else
    echo "------ php make failed. ------"
    exit 1
fi
;;
*)
    echo "Please input number 1 2 3."
esac

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Shell脚本能力薄弱，有错误之处，还望指正。谢谢！