这篇文章主要介绍“Shell怎么实现多级菜单系统”，在日常操作中，相信很多人在Shell怎么实现多级菜单系统问题上存在疑惑，小编查阅了各式资料，整理出简单好用的操作方法，希望对大家解答”Shell怎么实现多级菜单系统”的疑惑有所帮助！接下来，请跟着小编一起来学习吧！

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演示效果：

1、一级菜单

2、二级菜单

3、执行操作

脚本参考：

代码如下:

#!/bin/bash
#author lic(oldboy linux student)
#date 1304
DISK_NO="/dev/sda1"
NGINX_DIR="/usr/local/tdoa/nginx/sbin/nginx"
MYSQL_DIR="/usr/local/tdoa/mysql/bin/mysqld_safe"
SERVER1="WEB"
SERVER2="MYSQL"
SERVER1_START="/usr/local/tdoa/nginx/sbin/nginx"
SERVER1_STOP="kill -QUIT `cat /usr/local/tdoa/logs/nginx/nginx.pid`"
SERVER1_RESTART="kill -HUP `cat /usr/local/tdoa/logs/nginx/nginx.pid`"
SERVER2_START="/etc/init.d/mysql start"
SERVER2_STOP="/etc/init.d/mysql stop"
SERVER2_RESTART="/etc/init.d/mysql restart"
#date
DATE=`date +"%y-%m-%d %H:%M:%S"`
#ip
IPADDR=`ifconfig eth0|grep 'inet addr'|sed 's/^.*addr://g' |sed 's/Bcast:.*$//g'`
#hostname
HOSTNAME=`hostname -s`
#user
USER=`whoami`
#disk_check
DISK_SDA=`df -h | grep $DISK_NO | awk '{print $5}'`
#cpu_average_check
cpu_uptime=`cat /proc/loadavg | cut -c1-14`
#process_check
function process_check() {
for dir in $NGINX_DIR $MYSQL_DIR
do
process_count=$(ps -ef | grep "$dir" | grep -v grep | wc -l)
for service in nginx mysql
do
echo "$dir" |grep -q "$service"
if [ $? -eq 0 ]
then
if [ $process_count -eq 0 ]
then
echo "$service.......................[NOT RUN]"
else
echo "$service.......................[RUNNING]"
continue
fi
fi
done
done
}
declare flag=0
clear
while [ "$flag" -eq 0 ]
do
echo "========================================"
process_check
echo "========================================"
cat << EOF
|-----------System Infomation-----------
| DATE       :$DATE
| HOSTNAME   :$HOSTNAME
| USER       :$USER
| IP         :$IPADDR
| DISK_USED  :$DISK_SDA
| CPU_AVERAGE:$cpu_uptime
----------------------------------------
|****Please Enter Your Choice:[0-5]****|
----------------------------------------
(1) Configure $SERVER1 Service
(2) Configure $SERVER2 Service
(3) Configure NETWORKE Service
(4) Change Passwd
(5) Logs
(0) Quit
EOF
read -p "Please enter your choice[0-5]: " input
case $input in
#web service
1)
clear
while [ "$flag" -eq 0 ]
do
cat << EOF
----------------------------------------
|****Please Enter Your Choice:[0-3]****|
----------------------------------------
(1) Start $SERVER1 Service
(2) Stop $SERVER1 Service
(3) ReStart $SERVER1 Service
(0) Back
EOF
 read -p "Please enter your choice[0-3]: " input1
 case $input1 in
 1)
  echo -e "\n>>>>>>>>>>>$DATE Start $SERVER1">>/log.txt
  $SERVER1_START 2>>/log.txt
  if [ $? == 0 ];then
   echo "Start $SERVER1......................................................[OK]"
  else
   echo "Start $SERVER1......................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 2) 
  echo -e "\n>>>>>>>>>>>$DATE Stop $SERVER1">>/log.txt
  $SERVER1_STOP 2>>/log.txt
  if [ $? == 0 ];then
   echo "Stop $SERVER1.......................................................[OK]"
  else
   echo "Stop $SERVER1.......................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 3)
  echo -e "\n>>>>>>>>>>>$DATE ReStart $SERVER1">>/log.txt
  /usr/local/tdoa/php/sbin/php-fpm restart 2>>/log.txt
  $SERVER1_RESTART 2>>/log.txt
  if [ $? == 0 ];then
   echo "Restart $SERVER1....................................................[OK]"
  else
   echo "Restart $SERVER1....................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 0)
 clear
 break
 ;;
 *) echo "----------------------------------"
    echo "|          Warning!!!            |"
    echo "|   Please Enter Right Choice!   |"
    echo "----------------------------------"
 for i in `seq -w 10 -1 1`
   do
     echo -ne "\b\b$i";
     sleep 1;
   done
 clear
 ;;
 esac
 done
;;
#mysql service
2)
clear
while [ "$flag" -eq 0 ]
do
cat << EOF
----------------------------------------
|****Please Enter Your Choice:[0-3]****|
----------------------------------------
(1) Start $SERVER2 Service
(2) Stop $SERVER2 Service
(3) ReStart $SERVER2 Service
(0) Back
EOF
 read -p "Please enter your Choice[0-3]: " input2
 case $input2 in
 1)
  echo -e "\n>>>>>>>>>>>$DATE Start $SERVER2">>/log.txt
  $SERVER2_START 2>>/log.txt
  if [ $? == 0 ];then
   echo "Start $SERVER2......................................................[OK]"
  else
   echo "Start $SERVER2......................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 2)
  echo -e "\n>>>>>>>>>>>$DATE Stop $SERVER2">>/log.txt
  $SERVER2_STOP 2>>/log.txt
  if [ $? == 0 ];then
   echo "Stop $SERVER2.......................................................[OK]"
  else
   echo "Stop $SERVER2.......................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 3)
  echo -e "\n>>>>>>>>>>>$DATE ReStart $SERVER2">>/log.txt
  $SERVER2_RESTART 2>>/log.txt
  if [ $? == 0 ];then
   echo "Restart $SERVER2....................................................[OK]"
  else
   echo "Restart $SERVER2....................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 0)
 clear
 break
 ;;
 *) echo "----------------------------------"
    echo "|          Warning!!!            |"
    echo "|   Please Enter Right Choice!   |"
    echo "----------------------------------"
 for i in `seq -w 10 -1 1`
   do
     echo -ne "\b\b$i";
     sleep 1;
   done
 clear
 ;;
 esac
 done
;;
#网络服务
3)
clear
while [ "$flag" -eq 0 ]
do
cat << EOF
----------------------------------------
|****Please Enter Your Choice:[0-3]****|
----------------------------------------
(1) ReStart NETWORK Service
(2) Configure NETWORK Service
(0) Back
EOF
 read -p "Please enter your Choice[0-3]: " input3
 case $input3 in
 1)
   echo -e "\n>>>>>>>>>>>$DATE ReStart Network">>/log.txt
  /etc/init.d/network restart  2>>/log.txt
  if [ $? == 0 ];then
   echo "Restart Network.....................................................[OK]"
  else
   echo "Restart Network.....................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 2) 
    clear
  setup
  clear
  ;;
 0)
 clear
 break
 ;;
 *) echo "----------------------------------"
    echo "|          Warning!!!            |"
    echo "|   Please Enter Right Choice!   |"
    echo "----------------------------------"
 for i in `seq -w 10 -1 1`
   do
     echo -ne "\b\b$i";
     sleep 1;
   done
 clear
 ;;
 esac
 done
;;
4)
clear
while [ "$flag" -eq 0 ]
do
cat << EOF
----------------------------------------
|****Please Enter Your Choice:[0-3]****|
----------------------------------------
(1) Change ROOT Passwd
(2) Change Samba Passwd
(0) Back
EOF
 read -p "Please enter your Choice[0-3]: " input5
 case $input5 in
 1)
  echo -e "\n>>>>>>>>>>>$DATE Change System Administertor Root Passwd\n">>/log.txt
  passwd root 2>>/log.txt
  if [ $? == 0 ];then
   echo "Change ROOT Passwd.....................................................[OK]"
  else
   echo "Change ROOT Passwd.....................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 2)
  echo -e "\n>>>>>>>>>>>$DATE Change Samba Passwd">>/log.txt
  smbpasswd -a tdoa 2>>/log.txt
  if [ $? == 0 ];then
   echo "Change Samba Passwd.....................................................[OK]"
  else
   echo "Change Samba Passwd.....................................................[FAILED]"
  fi
  sleep 5
  clear
  ;;
 0)
 clear
 break
 ;;
 *) echo "----------------------------------"
    echo "|          Warning!!!            |"
    echo "|   Please Enter Right Choice!   |"
    echo "----------------------------------"
 sleep 8
 clear
 ;;
esac
done
;;
5)
clear
echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
echo "|"
less /log.txt
echo "|"
echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
;;
0)
clear
exit 0
;;
*)  echo "----------------------------------"
 echo "|          Warning!!!            |"
 echo "|   Please Enter Right Choice!   |"
 echo "----------------------------------"
 for i in `seq -w 10 -1 1`
   do
     echo -ne "\b\b$i";
     sleep 1;
   done
 clear
;;
esac
done

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