以前的脚本是用save模式，现在把命令附加到一个文件里面，这样的话，可以方便的二次修改什么的
脚本基本是这样的，大家可以跟自己的情况再次修改~ 增加功能什么的。

#!/bin/bash

while true

do

clear

echo "----------------------menu----------------------"

echo "(1) service iptables restart"

echo "(2) iptables add"

echo "(3) iptables delete"

echo "(4) iptables stop"

echo "(5) iptables save(不推荐使用这种模式)"

echo "(6) iptables status"

echo "(7) iptables ACL list"

echo "(0) exit"

echo "会在当前的目录下生成一个fw.sh文件"

echo "-------------------------------------------------"

echo -n "enter you chose[0-7]:"

read num

if [ ${num} -lt 0 -o ${num} -gt 7 ]

    then

      echo "this is not between 0-7"

else

   if [ "${num}" == "1" ]

      then

      service iptables restart&

else

   if [ "${num}" == "2" ]

#######################################################

       then

          while [ "1" == "1" ]

          do

          clear

          echo "----------------------add ACL----------------------"

          echo "(1) 针对源IP放行添加"

          echo "(2) 针对服务器端口放行添加"

          echo "(3) 针对有端口和服务的ACL添加（这里要参数IP和端口 例如 0/0 80）"

          echo "(4) 自定义添加"

          echo "(5) 退回上一级"

          echo "-------------------------------------------------"

          echo -n "enter you chose[0-4]:"

          read aclnum

          if [ "${aclnum}" == "1" ]

             then

             read ip

             iptables -A INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT

         echo "iptables -A INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT" >>fw.sh

#            service iptables save

          elif [ "${aclnum}" == "2" ]

             then

             rad ip

             iptables -A INPUT -p tcp --dport ${IP}  -j ACCEPT

         echo "iptables -A INPUT -p tcp --dport ${IP}  -j ACCEPT" >>fw.sh

#            service iptables save

          elif [ "${aclnum}" == "3" ]

             then

             read ip port

             iptables -A INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT

             echo "iptables -A INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT" >>fw.sh

#            service iptables save

          elif [ "${aclnum}" == "4" ]

             then

             read addacl

             `${addacl}`

             service iptables save

          else

             break

          fi

          echo -n "是否想继续添加: [y/n]:"

          read contine

          if [ "${contine}" == "n" -o "${contine}" == "N" ]

             then

             break

             fi

          done

#######################################################

else

   if [ "${num}" == "3" ]

          then

          while [ "1" == "1" ]

          do

          clear

          echo "---------------------delete ACL----------------------"

          echo "(1) 针对源ip删除"

          echo "(2) 针对端口删除"

          echo "(3) 针对有端口和服务的ACL删除"

          echo "(4) 自定义删除"

          echo "(5) 退回上一级"

          echo "-------------------------------------------------"

          echo -n "enter you chose[0-5]:"

          read aclnum

          if [ "${aclnum}" == "1" ]

             then

             read ip

             iptables -D INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT

             echo "iptables -D INPUT -s ${ip} -p tcp --dport 22 -j ACCEPT" >>fw.sh

#            service iptables save

          elif [ "${aclnum}" == "2" ]

             then

             read port

             iptables -D INPUT -p tcp --dport ${port}  -j ACCEPT

             echo "iptables -D INPUT -p tcp --dport ${port}  -j ACCEPT" >>fw.sh

#            service iptables save

          elif [ "${aclnum}" == "3" ]

             then

             read ip port

             iptables -D INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT

         echo "iptables -D INPUT -p tcp -s ${ip} --dport ${port} -j ACCEPT" >>fw.sh

#            service iptables save

          elif [ "${aclnum}" == "4" ]

             then

             read deleteacl

             `${deleteacl}`

             service iptables save

          else

             break

          fi

          echo -n "是否想继续添加: [y/n]:"

          read contine

          if [ "${contine}" == "n" -o "${contine}" == "N" ]

             then

             break

             fi

          done

################################################################### 

else

   if [ "${num}" == "4" ]

       then

       echo -e "`service iptables stop&` "

else

   if [ "${num}" == "5" ]

       then

       echo -e "`service iptables save&`"

else

   if [ "${num}" == "6" ]

       then

       echo -e "`service iptables status&`"

else

   if [ "${num}" == "7" ]

       then

         while [ "1" == "1" ]

       do

       clear

       echo "---------------------list ACL----------------------"

       echo "(1) 查看当前正在使用的规则集"

       echo "(2) 查看每个策略或每条规则、每条链的简单流量统计"

       echo "(3) 查看NAT表"

       echo "(4) 自定义查看"

       echo "(5) 退回上一级"

       echo "-------------------------------------------------"

       echo -n "enter you chose[0-5]:"

       read aclnum

       if [ "${aclnum}" == "1" ]

          then

          iptables -L

       elif [ "${aclnum}" == "2" ]

          then

          iptables -L -n -v

       elif [ "${aclnum}" == "3" ]

          then

          iptables -L -t nat

       elif [ "${aclnum}" == "4" ]

          then

          read listacl

          `${listacl}`

       else

        break

         fi

       echo -n "是否想继续添加: [y/n]:"

          read contine

          if [ "${contine}" == "n" -o "${contine}" == "N" ]

             then

             break

          fi

       done

################################################

else    

   exit

fi

  fi

    fi

     fi

      fi

       fi

        fi

         fi

echo -n "Do you contine [y/n]:"

read contine

if [ "${contine}" == "n" -o "${contine}" == "N" ]

   then

   exit

fi

done