分析shell脚本,学习方法,这个其实是在lnmp环境下再安装apache,实现lnmpa环境。
#!/bin/bash 
#定义PATH变量 
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
#声明PATH为环境变量 
export PATH 
# Check if user is root 
#id -u 当前用户的uid,也可以使用反引号`id -u`,效果一样,0为root的用户id 
if [ $(id -u) != "0" ]; then
    echo "Error: You must be root to run this script, please use root to install lnmp"
    exit 1 
fi
#清屏操作 
clear
#可以识别特殊字符 
printf "=======================================================================\n"
printf "Install Apache for LNMP V1.0  ,  Written by Licess \n"
printf "=======================================================================\n"
printf "LNMP is a tool to auto-compile & install Nginx+MySQL+PHP on Linux \n"
printf "This script is a tool to install Apache for lnmp \n"
printf "\n"
printf "For more information please visit  \n"
printf "=======================================================================\n"
#把当前路径给变量cur_dir 
cur_dir=$(pwd) 
#这个重点说一下,察看ip, 
#通过1次grep,过滤掉不包含inet的行 
#2次反向grep也就是取不包含的行,过滤掉包含127.0.0.1和inet6的行 
#awk 打印第2列 
#tr -d 去掉addr:,这样就只剩下ip 
ipv4=`ifconfig -a|grep inet|grep -v 127.0.0.1|grep -v inet6|awk '{print $2}'|tr -d "addr:"` 
#set Server Administrator Email Address 
    ServerAdmin=""
        #读取用户键盘输入还可以使用-t 30 指定时间限制 
    read -p "Please input Administrator Email Address:" ServerAdmin 
    if [ "$ServerAdmin" == "" ]; then
        echo "Administrator Email Address will set to webmaster@example.com!"
        ServerAdmin="webmaster@example.com"
    else
    echo "==========================="
    echo Server Administrator Email="$ServerAdmin"
    echo "==========================="
    fi
        #定义函数 
    get_char() 
    { 
        #打印当前终端的设置赋予变量 
    SAVEDSTTY=`stty -g` 
        #echo input characters 
    stty -echo
    stty cbreak 
        #把指定的输入文件拷贝到指定的输出文件中,并且在拷贝的过程中可以进行格式转换 
        #if =输入文件,bs = bytes 同时设置读/写缓冲区的字节数(等于设置obs和ibs),count = blocks 只拷贝输入的blocks块 
    dd if=/dev/tty bs=1 count=1 2> /dev/null
    stty -raw 
    stty echo
    stty $SAVEDSTTY 
    } 
    echo ""
    echo "Press any key to start install Apache for LNMP or Press Ctrl+C to cancel..."
    char=`get_char` 
printf "===================== Check And Download Files =================\n"
#test测试 如果文件的长度不为零,则为真 
if [ -s httpd-2.2.22.tar.gz ]; then
  echo "httpd-2.2.22.tar.gz [found]"
  else
  echo "Error: httpd-2.2.22.tar.gz not found!!!download now......"
  wget -c  
fi
#mod_rpaf是apache的一个模块,目的是为了获取访客的真实IP 
if [ -s mod_rpaf-0.6.tar.gz ]; then
  echo "mod_rpaf-0.6.tar.gz [found]"
  else
  echo "Error: mod_rpaf-0.6.tar.gz not found!!!download now......"
  wget -c  
fi
#php源码 
if [ -s php-5.2.17.tar.gz ]; then
  echo "php-5.2.17.tar.gz [found]"
  else
  echo "Error: php-5.2.17.tar.gz not found!!!download now......"
  wget -c  
fi
printf "=========================== install Apache ======================\n"
#停止当前的其他服务 
echo "Stoping Nginx..."
/etc/init.d/nginx stop 
echo "Stoping MySQL..."
/etc/init.d/mysql stop 
echo "Stoping PHP-FPM..."
/etc/init.d/php-fpm stop 
if [ -s /etc/init.d/memceached ]; then
  echo "Stoping Memcached..."
  /etc/init.d/memcacehd stop 
fi
#备份 
echo "Backup old php configure files....."
mkdir /root/lnmpbackup/
cp /root/lnmp /root/lnmpbackup/
cp /usr/local/php/etc/php.ini /root/lnmpbackup/
cp /usr/local/php/etc/php-fpm.conf /root/lnmpbackup/
#开始编译安装 
cd $cur_dir 
rm -rf httpd-2.2.22/ 
tar zxvf httpd-2.2.22.tar.gz 
cd httpd-2.2.22/ 
./configure --prefix=/usr/local/apache --enable-headers --enable-mime-magic --enable-proxy --enable-so --enable-rewrite --enable-ssl --enable-deflate --enable-suexec --disable-userdir --with-included-apr --with-mpm=prefork --with-ssl=/usr --disable-userdir --disable-cgid --disable-cgi --with-expat=builtin
make && make install
cd .. 
mv /usr/local/apache/conf/httpd.conf /usr/local/apache/conf/httpd.conf.bak 
#\cp 不走alias的cp 
\cp $cur_dir/conf/httpd.conf /usr/local/apache/conf/httpd.conf 
\cp $cur_dir/conf/httpd-default.conf /usr/local/apache/conf/extra/httpd-default.conf 
\cp $cur_dir/conf/httpd-vhosts.conf /usr/local/apache/conf/extra/httpd-vhosts.conf 
\cp $cur_dir/conf/httpd-mpm.conf /usr/local/apache/conf/extra/httpd-mpm.conf 
\cp $cur_dir/conf/rpaf.conf /usr/local/apache/conf/extra/rpaf.conf 
#sed实现内容替换 
sed -i 's/#ServerName :80/ServerName :88/g' /usr/local/apache/conf/httpd.conf 
sed -i 's/ServerAdmin you@example.com/ServerAdmin '$ServerAdmin'/g' /usr/local/apache/conf/httpd.conf 
#sed -i 's/www.lnmp.org/'$domain'/g' /usr/local/apache/conf/extra/httpd-vhosts.conf 
sed -i 's/webmaster@example.com/'$ServerAdmin'/g' /usr/local/apache/conf/extra/httpd-vhosts.conf 
mkdir -p /usr/local/apache/conf/vhost
#向/usr/local/apache/conf/httpd.conf中末尾追加内容Include conf/vhost/*.conf 
cat >>/usr/local/apache/conf/httpd.conf<<EOF 
Include conf/vhost/*.conf 
EOF 
#安装rpaf 
tar -zxvf mod_rpaf-0.6.tar.gz 
cd mod_rpaf-0.6/ 
/usr/local/apache/bin/apxs -i -c -n mod_rpaf-2.0.so mod_rpaf-2.0.c 
cd .. 
#创建软链 
ln -s /usr/local/lib/libltdl.so.3 /usr/lib/libltdl.so.3 
#sed -i 's#your_ips#'$ipv4'#g' /usr/local/apache/conf/extra/rpaf.conf 
echo "Stop php-fpm....."
rm -rf /usr/local/php/
cd $cur_dir 
if [ -s php-5.2.17 ]; then
rm -rf php-5.2.17 
fi
tar zxvf php-5.2.17.tar.gz 
cd php-5.2.17/ 
wget -c  
#打一个补丁这里需要了解diff和patch 
patch -p1 < php-5.2.17-max-input-vars.patch 
./configure --prefix=/usr/local/php --with-config-file-path=/usr/local/php/etc --with-apxs2=/usr/local/apache/bin/apxs --with-mysql=/usr/local/mysql --with-mysqli=/usr/local/mysql/bin/mysql_config --with-iconv-dir --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-libxml-dir=/usr --enable-xml --disable-rpath --enable-discard-path --enable-magic-quotes --enable-safe-mode --enable-bcmath --enable-shmop --enable-sysvsem --enable-inline-optimization --with-curl --with-curlwrappers --enable-mbregex --enable-mbstring --with-mcrypt --enable-ftp --with-gd --enable-gd-native-ttf --with-openssl --with-mhash --enable-pcntl --enable-sockets --with-xmlrpc --enable-zip --enable-soap --without-pear --with-gettext --with-mime-magic 
if cat /etc/issue | grep -Eqi '(Debian|Ubuntu)';then
    cd ext/openssl/
    wget -c  
    patch -p3 <debian_patches_disable_SSLv2_for_openssl_1_0_0.patch 
    cd ../../ 
fi
rm -rf libtool 
cp /usr/local/apache/build/libtool . 
make ZEND_EXTRA_LIBS='-liconv'
make install
mkdir -p /usr/local/php/etc
cp php.ini-dist /usr/local/php/etc/php.ini 
cd ../ 
#安装PDO扩展 
cd $cur_dir/php-5.2.17/ext/pdo_mysql/
/usr/local/php/bin/phpize
./configure --with-php-config=/usr/local/php/bin/php-config --with-pdo-mysql=/usr/local/mysql
make && make install
cd $cur_dir/ 
# 添加 php extensions 
sed -i 's#extension_dir = "./"#extension_dir = "/usr/local/php/lib/php/extensions/no-debug-non-zts-20060613/"\nextension = "memcache.so"\nextension = "pdo_mysql.so"\n#' /usr/local/php/etc/php.ini 
sed -i 's#output_buffering = Off#output_buffering = On#' /usr/local/php/etc/php.ini 
sed -i 's/post_max_size = 8M/post_max_size = 50M/g' /usr/local/php/etc/php.ini 
sed -i 's/upload_max_filesize = 2M/upload_max_filesize = 50M/g' /usr/local/php/etc/php.ini 
sed -i 's/;date.timezone =/date.timezone = PRC/g' /usr/local/php/etc/php.ini 
sed -i 's/short_open_tag = Off/short_open_tag = On/g' /usr/local/php/etc/php.ini 
sed -i 's/; cgi.fix_pathinfo=1/cgi.fix_pathinfo=0/g' /usr/local/php/etc/php.ini 
sed -i 's/max_execution_time = 30/max_execution_time = 300/g' /usr/local/php/etc/php.ini 
sed -i 's/disable_functions =.*/disable_functions = passthru,exec,system,chroot,scandir,chgrp,chown,shell_exec,proc_open,proc_get_status,ini_alter,ini_alter,ini_restore,dl,pfsockopen,openlog,syslog,readlink,symlink,popepassthru,stream_socket_server,fsocket,fsockopen/g' /usr/local/php/etc/php.ini 
#根据系统安装ZendOptimizer 
if [ `getconf WORD_BIT` = '32' ] && [ `getconf LONG_BIT` = '64' ] ; then
        wget -c  
        tar zxvf ZendOptimizer-3.3.9-linux-glibc23-x86_64.tar.gz 
    mkdir -p /usr/local/zend/
    cp ZendOptimizer-3.3.9-linux-glibc23-x86_64/data/5_2_x_comp/ZendOptimizer.so /usr/local/zend/
else
        wget -c  
    tar zxvf ZendOptimizer-3.3.9-linux-glibc23-i386.tar.gz 
    mkdir -p /usr/local/zend/
    cp ZendOptimizer-3.3.9-linux-glibc23-i386/data/5_2_x_comp/ZendOptimizer.so /usr/local/zend/
fi
#给php.ini追加内容 
cat >>/usr/local/php/etc/php.ini<<EOF 
;eaccelerator 
;ionCube 
[Zend Optimizer] 
zend_optimizer.optimization_level=1 
zend_extension="/usr/local/zend/ZendOptimizer.so"
EOF 
cd $cur_dir 
cp conf/proxy.conf /usr/local/nginx/conf/proxy.conf 
mv /usr/local/nginx/conf/nginx.conf /root/lnmpbackup/
cp conf/nginx_a.conf /usr/local/nginx/conf/nginx.conf 
#添加apache自动启动脚本 
echo "Download new Apache init.d file......"
wget -c  
cp init.d.httpd /etc/init.d/httpd
chmod +x /etc/init.d/httpd
echo "Test Nginx configure files..."
/usr/local/nginx/bin/nginx -t 
echo "ReStarting Nginx......"
/etc/init.d/nginx restart 
echo "Starting Apache....."
/etc/init.d/httpd restart 
#更新系统启动项 
echo "Remove old startup files and Add new startup file....."
if cat /etc/issue | grep -Eqi '(Debian|Ubuntu)';then
    update-rc.d -f httpd defaults 
    update-rc.d -f php-fpm remove 
else
    sed -i '/php-fpm/'d /etc/rc.local
    chkconfig --level 345 php-fpm off 
    chkconfig --level 345 httpd on 
fi
cd $cur_dir 
rm -f /etc/init.d/php-fpm
mv /root/vhost.sh /root/lnmp.vhost.sh 
cp vhost_lnmpa.sh /root/vhost.sh 
chmod +x /root/vhost.sh 
cp lnmpa /root/
chmod +x /root/lnmpa
printf "====================== Upgrade to LNMPA completed =====================\n"
printf "You have successfully upgrade from lnmp to lnmpa,enjoy it!\n"
printf "=======================================================================\n"
printf "LNMP is a tool to auto-compile & install Nginx+MySQL+PHP on Linux \n"
printf "This script is a tool to upgrade from lnmp to lnmpa \n"
printf "\n"
printf "For more information please visit  \n"
printf "=======================================================================\n"
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