readInfo.sh

#!/bin/bashread -t 30 -n 1 -p "Press 'w' to write in, Press 's' to search, Press 'r' to remove :" checho -e "\n"if [ $ch == "w" ]    then        if [ ! -d /tmp/info ]            then                mkdir /tmp/info                     echo -e "User\tPlatform\tID\tPassword\n" > /tmp/info/passwd.txt                        fi        read -t 30 -p "User:" user        read -t 30 -p "Platform:" plat        read -t 30 -p "ID:" id        read -t 30 -s -p "Password:" key        echo -e "\n"        echo -e "$user\t$plat\t$id\t$key\n" >> /tmp/info/passwd.txtelif [ $ch == "s" ]    then        read -t 30 -p "Please input the Platform for searhing:" splt        read -t 30 -p "Please input ID for searching:" sid        grep "$splt.$sid" /tmp/info/passwd.txt | awk '{printf "The password is :"$4"\n"}'    elif [ $ch == "r" ]    then         read -t 30 -p "Please input the Platform for removing:" rplt        read -t 30 -p "Please input the ID for removing:" rid        sed -i '/'"$rplt.$rid"'/d' /tmp/info/passwd.txt &>/dev/null    else    echo -e "Wrong instruction!\n"fiecho -e "\n" 

Backup.sh

#!/bin/bashntpdate asia.pool.ntp.org &>/dev/nulldate=$(date +%y%m%d)size=$(du -sh /etc)if [ -d /tmp/dbback ]    then        echo "Date is :$date" > /tmp/dbback/db.txt        echo "Size is :$size" >> /tmp/dbback/db.txt        cd /tmp/dbback        tar -zcf etc_$date.tar.gz /etc db.txt &>/dev/null        rm -rf /tmp/dbback/db.txt    else        mkdir /tmp/dbback        echo "Date is :$date" > /tmp/dbback/db.txt        echo "Size is :$size" >> /tmp/dbback/db.txt        cd /tmp/dbback        tar -zcf etc_$date.tar.gz /etc db.txt &>/dev/null        rm -rf /tmp/dbback/db.txtfi