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  • shell script

    一  每隔30分钟将cpu 内存 使用的情况写入日志
    #!/bin/bash

    LOGPATH="."

    info() {
    echo "" >> $LOGPATH/log.txt
    echo "" >> $LOGPATH/log.txt
    echo -n "============" >> $LOGPATH/log.txt
    date >> $LOGPATH/log.txt

    #cpu
    mpstat -A >> $LOGPATH/log.txt
    echo "" >> $LOGPATH/log.txt

    #memory
    free -l >> $LOGPATH/log.txt
    echo "" >> $LOGPATH/log.txt

    #disk
    df -h >> $LOGPATH/log.txt
    echo "" >> $LOGPATH/log.txt

    # network
    # nload
    }

    echo "" > $LOGPATH/log.txt
    while [ 2 -gt 1 ]; do
    info;
    sleep 1800;
    done


    二 做一个菜单 包夸4项功能 输入数字 选择相应的功能
    第1项 显示指定的信息(如用户/shell等)
    第2项 任意输入两个数,选择加减乘除 做一运算 给出结果
    第3项 输入一串以0结尾的大写字字母串 给出其中最小的一个字母(按ascii码)
    第4项 确认并退出
    #!/bin/bash

    PS3='Input option(1-4):'
    stack="Display Cacluate Sort Quit"
    select choice in $stack; do
    if [ "$choice" = "Display" ]; then
    read -p "Input you want to display[name/path/shell/cal]" info
    if [ "$info" = "name" ]; then
    echo "$USER"
    elif [ "$info" = "path" ]; then
    echo "$HOME"
    elif [ "$info" = "shell" ]; then
    echo "$SHELL"
    elif [ "$info" = "cal" ]; then
    cal 2011
    fi
    elif [ "$choice" = "Cacluate" ]; then
    read -p "Input one number: " num1
    read -p "Input the other number: " num2
    read -p "Input method[A/S/M/D]: " mod
    case $mod in
    'A' ) echo "$num1 + $num2 is $((num1+num2))";;
    'S' ) echo "$num1 - $num2 is $((num1-num2))";;
    'M' ) echo "$num1 * $num2 is $((num1*num2))";;
    'D' ) echo "$num1 / $num2 is $((num1/num2))";;
    * ) echo "wrong method";;
    esac
    elif [ "$choice" = "Sort" ]; then
    read -p "Input an string with 0 ended:" str
    res=`echo $str | awk -F"0" '{print $1}'`
    echo $res | awk -F "" '{ a=$1; for(i=2;i<NF;i++) if( $i < a) a=$i; print a}'
    elif [ "$choice" = "Quit" ]; then
    read -s -n1 -p "Do you really want to quit?(Y)"
    if [ "$REPLY" = "Y" ];then
    exit 0;
    fi
    else
    echo "Invalid selection, Please input number."
    fi
    done
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  • 原文地址:https://www.cnblogs.com/iloveyoucc/p/2451643.html
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