2021212094

#!/usr/ bin/bash 
   
#Author:Li Yuanfan
#Script Description:nginx install and upgrade
   
   #定义版本与目录变量
   nginx_version="nginx-1.21.6.tar.gz"
   nginx_files='echo "$nginx_version"|cut -d "." -f1-3'
   nginx_installfiles="/usr/local/nginx"
   #下载依赖包
  
   if ! (apt-get -f install 1>/dev/null);
   then
       echo "缺少依赖包"
       exit 1
   fi
   #下载并解压源码包,同样除去多余命令
   install()
   {
      if wget http://nginx.org/download/$nginx_version 1>/dev/null;
      then
          tar xf $nginx_version
          if [ ! -d $nginx_files ];
          then
              echo "未获取源码包"
              exit 1
          fi
      else
          echo "源码包下载失败"
          exit 1
      fi
   #编译安装到指定文件夹下 
   cd $nginx_installfiles || exit
   if ./configure --prefix="$nginx_files" 1>/dev/null;
   then
       if make;
       then
           if make install;
           then
              echo"安装成功"
          else
              echo"失败";
              exit 1
           fi
       else
          echo"失败";
          exit 1
       fi
   else
      echo"失败";
      exit 1
   fi
  }