linux中基于时间的增量备份

linux中基于时间的增量备份

#!/bin/bash

BACKUP_S=/tmp/kevintmp

BACKUP_T=/tmp/backup

TIME_KEY_F=/tmp/kevintmp/.time-key

DATETIME=$(date +%y%m%d%H%M)

all()

{

   touch  $TIME_KEY_F

   cp -a  $BACKUP_S  $BACKUP_T/$DATETIME  

}

update()

{

     if [ !  -f  $TIME_KEY_F ];then

            return 1

     fi

      cd  $BACKUP_S  | |  return 1

     touch  $TIME_KEY_F.tmp

     find  ./   -newer $TIME_KEY_F  -type f >/tmp/file_list.list

     find  ./  -newer  $TIME_KEY_F  -type d >/tmp/dir_list.list

     mkdir -p  $BACKUP_T/$DATETIME

     tar -cf  -T /tmp/file_list.list | tar -x -C $BACKUP_T/$DATETIME

     while read DIR_name

    do

           mkdir -p  $BACKUP_T/$DATETIME/$DIR_name

    done</tmp/dir_list.list

     mv $TIME_KEY_F.tmp $TIME_KEY_F

}

all