Shell implementation of multi-level menu scripting

This article mainly introduces the shell implementation of multi-level menu system Installation script instance sharing, this script with multi-level menu to achieve lamp, LNMP installation display effect, the need for Friends can refer to:

Hint: This script mainly realizes multi-level menu effect, and does not install lamp, LNMP environment, if want to use in the actual build environment to deploy LNMP, lamp environment, only need to make a simple modification.

Demo Effect:

1. Level menu

650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/8C/69/wKioL1hsVUyjqmWsAAASz-o0joA283.png "title=" level menu alt= "Wkiol1hsvuyjqmwsaaasz-o0joa283.png"/>

2, Level two menu

650) this.width=650; "src=" Http://s5.51cto.com/wyfs02/M02/8C/6D/wKiom1hsVtHhwMV-AAASZwYejKg413.png "title=" Level two menu " alt= "Wkiom1hsvthhwmv-aaaszwyejkg413.png"/>

3. Perform operation

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Script reference:

The code is as follows:

#!/bin/bash#[ -f /etc/init.d/functions ] && . /etc/init.d/ Functionsfunction menu () {cat << eof----------------------------------------------|******* please enter your choice:[1-4]*******|----------------------------------------------*     ' echo -e  ' \033[35m 1) lamp install\033[0m "' *    ' echo -e   "\033[35m 2) lnmp install\033[0m" ' *    ' echo -e  "\033[35m 3) quit\ 033[0m "' *    ' echo -e " \033[35m 4) return main menu\033[0m "' EOF}function  lamp_menu () {cat << eof----------------------------------------------|*******please  enter your choice:[1-4]*******|----------------------------------------------*    ' echo -e  "\033[35m 1) http install\033[0m" ' *    ' echo -e  "\033[35m &NBSP;2) mysql install\033[0m "' *&Nbsp;   ' echo -e  "\033[35m 3) php install\033[0m" ' *    ' echo -e   "\033[35m 4" return main menu\033[0m "' eofread -p " # # #please  input  second_lamp optios[1-4]:  " num2expr  $num 2 + 1 &>/dev/null    #这里加1 to determine if the input is an integer. if [ $? -ne 0 ];then     #如果不等于零, representing input is not an integer.  echo  "###########################"  echo  "waing !!!, input error     " echo " please enter choose[1-4]: " echo " ########################## "  exit 1ficase  $num 2 in  1)    action  "installed httpd ..."  /bin/true   sleep 2   lamp_menu   ;; &NBSP;&NBSP;2)    action  "Installed mysql ..."  /bin/true   sleep  2   lamp_menu   ;;   3)    action  "installed php ..."  /bin/true   sleep  2   lamp_menu   ;; &NBSP;&NBSP;4)    clear   menu   ;;   *)    clear   echo    echo -e  "\033[ 31myour enter the wrong,please input again choice:[1-4]\033[0m "    lamp_menuesac}function lnmp_menu () {cat <<  EOF----------------------------------------------|*******please enter your choice:[1-4]*******| ----------------------------------------------*    ' echo -e  "\033[35m 1) nginx  install\033[0m "' *    ' echo -e " \033[35m 2) mysql install\033[0m "' *     ' echo -e  ' \033[35m 3) php install\033[0m "' *    ' echo - e  "\033[35m 4) return main menu\033[0m "' eofread -p " please input second_lnmp options[1-4]:  " num3expr   $num 2 + 1 &>/dev/null   #这里加1 to determine if the input is an integer. if [ $? -ne 0 ];then   #如果不等于零, representing input is not an integer.   echo   echo  "Please enter a integer"   exit  1ficase  $num 3 in   1)      action  "Installed nginx ... " /bin/true     sleep 2     lnmp_menu      ;; &NBSP;&NBSP;&NBSP;2)     action  "Installed mysql ..."  /bin/true     sleep 2    clear    lnmp_menu     ;;    3)      action  "installed php ..."  /bin/true      sleep 2     clear     lnmp_menu     ;; &NBSP;&NBSP;&NBSP;4)     clear    menu    ;;    *)     clear    echo    echo  -e  "\033[31myour enter the wrong,please input again choice:[1-4]\033[ 0m "    lnmp_menuesac}clearmenuwhile true ;d o read -p " # #please  enter your first_menu choice:[1-4] " num1  expr  $num 1 + 1  &>/dev/null    #这里加1 to determine if the input is an integer.   if [ $? -ne 0 ];then    #如果不等于零, representing input is not an integer.     echo  "----------------------------"     echo  "| "      waring!!!            | "     echo&nBSP; "| Please enter right choice!| "     echo  "----------------------------"     sleep 1    case  $num 1 in      1)         clear       lamp_menu       ;; &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;2)        clear        lnmp_menu       ;; &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;3)        clear        break       ;; &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;4)        clear        menu       ;;       *) &NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;&NBSP;CLEAR&NBSP;&NBSP;&Nbsp;    echo -e  "\033[31myour enter a number error,please  enter again choice:[1-4]: \033[0m "              menu   esacdone

Shell implementation of multi-level menu scripting