一些想法

1. 需要使用shell编写一个简单实用的系统工具箱脚本
2. 一共想出了两套方案
3. 本套综合了一些自己的想法不是很熟练大家看个乐 (^o ^ )

基本使用界面大概是这样

分析需要的功能

我的构思将其分成7个部分

1. 磁盘挂载信息部分
2. 内存使用部分
3. CPU利用率和负载部分
4. 网络端口信息部分
5. 进程信息部分
6. 磁盘每秒进程下的IO读、写请求数量部分
7. 没有匹配项重新显示菜单部分

构建整体框架

1、定义了函数

#<-----------------------询问继续使用工具箱函数定义
whether ()  read -p "Continue to use[y],sign out[n]:" play
        if [[ "$play" == "y" ]];then
        clear
        else
                echo "Thank you for your use. Have a nice day!";exit
        fi

#<-------------------------菜单显示函数定义
ToolboxMenu () 
echo -e "\\033[5;34m ========This is a system detection toolbox============\\033[0m"
echo -e "\\033[33m |            1.查看磁盘挂载信息                           | \\033[0m"
echo -e "\\033[33m |            2.查看内存信息                              | \\033[0m"
echo -e "\\033[33m |            3.查看CPU信息                               | \\033[0m"
echo -e "\\033[33m |            4.查看网络端口信息                           | \\033[0m"
echo -e "\\033[33m |            5.查看进程信息                              | \\033[0m"
echo -e "\\033[33m |            6.磁盘每秒进程下的I0读写数量                  | \\033[0m"
echo -e "\\033[33m |            7.Exit Toolbox                            | \\033[0m"
echo -e "\\033[33m | Current Time:$(date "+%Y-%m-%d %H:%M:%S") welcome!!engineer! |\\033[0m"
echo -e "\\033[5;34m =============System detection toolbox=================\\033[0m"

2、使用交互定义变量邀请用户输入

#<----------------邀请用户输入需要检测的信息
read -p "Please enter your choice![1..7]" number

3、使用while循环让工具箱一直使用
4、中间为case判断选项
5、最后一部分为没有匹配项的匹配

#<------------------没有匹配项重新显示菜单
                *)
                        echo -e "\\033[31m  Error redirecting to menu for you ! \\033[0m"
                ;;

着手完整代码

#!/bin/bash
#Author:Pakho
#Date:2021.5.21
#File:SystemToolbox.sh
#VersionNumber:v1.0.1
#https://blog.csdn.net/sixeleven611
#Demand:Write system toolbox
#——————————————————————————————————
#script start
#<-----------------------询问继续使用工具箱函数定义
whether ()  read -p "Continue to use[y],sign out[n]:" play
        if [[ "$play" == "y" ]];then
        clear
        else
                echo "Thank you for your use. Have a nice day!";exit
        fi

#菜单显示函数定义
ToolboxMenu () 
echo -e "\\033[5;34m ========This is a system detection toolbox============\\033[0m"
echo -e "\\033[33m |            1.查看磁盘挂载信息                          | \\033[0m"
echo -e "\\033[33m |            2.查看内存信息                             | \\033[0m"
echo -e "\\033[33m |            3.查看CPU信息                             | \\033[0m"
echo -e "\\033[33m |            4.查看网络端口信息                          | \\033[0m"
echo -e "\\033[33m |            5.查看进程信息                             | \\033[0m"
echo -e "\\033[33m |            6.磁盘每秒进程下的I0读写数量                 | \\033[0m"
echo -e "\\033[33m |            7.Exit Toolbox                           | \\033[0m"
echo -e "\\033[33m | Current Time:$(date "+%Y-%m-%d %H:%M:%S") welcome!!engineer! |\\033[0m"
echo -e "\\033[5;34m =============System detection toolbox=================\\033[0m"

#<----------------邀请用户输入需要检测的信息
while :
do
        ToolboxMenu
        read -p "Please enter your choice![1..7]" number
                case $number in
#<-----------------------------------------------------------磁盘挂载信息
                1)
                                echo -e "\\033[5;34m ============Partition information$z============\\033[0m"
                                df -hT
                                whether
                ;;
#<------------------------------------------------------内存使用情况
                2)
                        echo -e "\\033[5;34m ============Memory usage============\\033[0m"
                        free -h
                        n=1
                        for i in 1..3
                        do
                                echo -e "\\033[5;34m ============Memory usage$n============\\033[0m"
                                vmstat | awk 'if(NR==3)print "You have free memory left:" $4'
                                let ++n
                                sleep 1
                        done
                        whether
                ;;
#<-------------------------------------------------------CPU利用率和负载
                3)
                        v=1
                        for i in 1..3
                        do
                                echo -e "\\033[5;34m ============CPU usage$v===========\\033[0m"
                                uptime
                                vmstat | grep 2 |awk 'if (100-$15<=10)print 100-$15 "%","您的CPU很安全"elseprint 100-$15 "%","您的CPU即将满载请留意"'
                                let ++v
                                sleep 1
                        done
                                whether
                ;;
#<---------------------------------------------------------------网络端口信息
                4)
                        while :
                        do
                                echo -e "\\033[5;34m ============Network port information============\\033[0m"
                                read -p "Please enter the network port number you want to query:" Port
                                netstat -anpt | head -2
                                netstat -anpt | grep $Port
                                read -p "Do you want to check the port?[y/n]" see
                                if [[ ! $see == "y" ]];then
                                        echo "Thank you for your use. Have a nice day!";exit
                                else
                                        break
                                fi
                        done
                        whether
                ;;
#<----------------------------------------------------------------进程信息查询
                5)
                        echo -e "\\033[5;34m ============Process information============\\033[0m"
                        read -p "Please enter the process information you want to query:" Process
                        ps aux | grep -v grep |grep $Process
                        whether
                ;;
#<-------------------------------------------磁盘每秒进程下的IO读、写请求数量
                6)
                        b=1
                        for i in 1..3
                        do
                                echo -e "\\033[5;34m ============Number of IO read / write requests issued by the process$b============\\033[0m"
                                iostat | grep ^sd | awk 'print $1,$2'
                                let ++b
                                sleep 1
                        done
                                whether
                ;;
#<---------------------------------退出
                7)
                        echo -e "\\033[36 Thank you for your use. Have a nice day!\\033[0m"
                        exit
                ;;
#<------------------没有匹配项重新显示菜单
                *)
                        echo -e "\\033[31m  Error redirecting to menu for you ! \\033[0m"
                ;;
        esac
done
#script end