Linux编程大作业记事本,OS大作业一：shell编程

readInfo.sh#!/bin/bash

read -t 30 -n 1 -p "Press 'w' to write in, Press 's' to search, Press 'r' to remove :" ch

echo -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.txt

elif [ $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"

fi

echo -e "\n"

Backup.sh#!/bin/bash

ntpdate asia.pool.ntp.org &>/dev/null

date=$(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.txt

fi