轉自：http://blog.chinaunix.net/xmlrpc.php?r=blog/article&uid=26807463&id=4577034

?

?之前寫過?linux下簡單的備份的腳本?， 最開始一直用著， 后來覺得有必要改進下它了， 不管是從操作方式上還是工作方式上。有這樣的想法是因為一次備份引起的。 我經歷過磁盤損壞的痛苦， 花了1500元才勉強將數據拯救回來， 于是導致我對備份要求更加高了， 我期望盡量每周備份， 期望備份的目的地是當前系統的完整鏡像，也就是說我能夠從備份盤啟動，且啟動后
系統的操作方法以及文件和當前的一模一樣，每周我只需要增量備份當前的修改的備份盤，這樣就安全了很多。于是就有了下面的備份腳本（我不喜歡造輪子，但是在linux下沒有現成的適合我的）

NOTE： 當前還沒有加入自動鏡像系統，所以如果想鏡像系統，那么可以手動這樣操作， 準備一塊大于當前系統盤的移動盤，
分區，注意分區的結構盡量和系統的一模一樣， 然后格式化，文件系統也盡量相同， 然后就可以備份了 備份的時候主要有些
目錄需要跳過，比如sys dev proc等等，需要跳過的目錄可以在backup程序了面設置！
這是腳本程序：

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#!/bin/bash

# This program?is?free software;?you can redistribute it?and/or

# modify it under the terms of the GNU General?Public?License as

# published by the Free Software Foundation;?either version 2 of

# the License,?or?(at your?option)?any later version.

#?

# This program?is?distributed?in?the hope that it will be useful,

# but WITHOUT ANY WARRANTY;?without even the implied warranty of

# MERCHANTABILITY?or?FITNESS?FOR?A PARTICULAR PURPOSE.?See the

# GNU General?Public?License?for?more details.

# Author:?rongp

# email:?rongpmcu#gmail.com

#?Date:?2014/10/26

# 備份程序

# 特點：

# 主要支持unix類系統下， 支持符號鏈接

# 支持增量備份

# 支持網絡備份（由于基于rsync， 很容易加入該功能，但暫時沒加入）

# 文件名支持空格 但是不能出現含有@#@的文件名

# 支持備份每次的更新，方便用于人工操作失誤后的修復

# 支持添加規則用于剔除某些文件 格式參考rsync的PATTERN部分

SHELL=/bin/bash

backup_cfg_path=/etc

backup_cfg=$backup_cfg_path/backup.cfg

db_path=

db_pathname=

inc_path=

XECHO=1

_help()?

{

????echo?-e?"$0 [option]\n"\

????????"\tOption:\n"\

????????"\t-h show this help.\n"\

????????"\t-i perform the installation, and you should use this option\n"\

????????"\t before using the backup to do something else.\n"\

????????"\t-u perform the un-installation.\n"

}

help()?

{

????echo?-e?"Command action\n"\

????????"\th show this help.\n"\

????????"\ta add any file that you want to backup to the database.\n"\

????????"\td delete any file that you no longer want from the database.\n"\

????????"\tb start backup.\n"\

????????"\tbf assume \"yes\" as answer to all prompts and run non-interactively.\n"\

????????"\tn perform a trial backup with no changes made.\n"\

????????"\tp print the file record.\n"\

????????"\tc do some configurations, such as, modifying the path to the\n"\

????????"\t database or to the incremental backup directory.\n"\

????????"\ts show the current configuration.\n"\

????????"\ti perform the installation, and you should use this option\n"\

????????"\t before using the backup to do something else.\n"\

????????"\tu perform the un-installation.\n"\

????????"\tq quit"

}

color_echo()

{

????case?"$1"?in?

????????g)

????????????shift

????????????echo?-e?"\033[32m"$@"\033[0m"

????????;;

????????gn)

????????????shift

????????????echo?-e?-n?"\033[32m"$@"\033[0m"

????????;;

????????r)

????????????shift

????????????echo?-e?"\033[31m"$@"\033[0m"

????????;;

????????y)

????????????shift

????????????echo?-e?"\033[33m"$@"\033[0m"

????????;;

????????yn)

????????????shift

????????????echo?-e?-n?"\033[33m"$@"\033[0m"

????????;;

????????*)

????????????shift

????????????echo $@

????????;;

????esac

}

XECHO()

{

????if?[?"$XECHO"?=?1?];?then

????????echo $@

????fi

}

check_src_dst()

{

????if?!?test?-e?"$1"?||?!?test?-e?"$2";?then

????????color_echo r?"$1"?or?"$2"?does?not?ignore?

????????return 2

????fi

????local src_part1=`df?"$1"?|?cut?-d?'?'?-f 1`

????local src_part2=`df?"$2"?|?cut?-d?'?'?-f 1`

????local nsrc_inode=`ls?-lid?"$1"?|?cut?-d?'?'?-f 1`

????local ndst_inode=`ls?-lid?"$2"?|?cut?-d?'?'?-f 1`

????XECHO nsrc_inode:$nsrc_inode ndst_inode:$ndst_inode

????if?[?"$src_part1"?!=?"$src_part2"?];?then

????????return 1

????fi

????if?[?"$nsrc_inode"?=?"$ndst_inode"?];?then

????????????color_echo r?"$src is equivalent to $dst. ignore it!"

????????????return 2

????fi

????if?[?!?-e $db_pathname?];?then

????????return 1

????fi

????while?read?-r tsrc tdst tex_src;

????do

????????tsrc="${tsrc//@#@/ }"

????????tdst="${tdst//@#@/ }"

????????tex_src="${tex_src//@#@/ }"

????????XECHO tsrc:"$tsrc"?tdst:"$tdst"

????????osrc_inode=`ls?-lid?"$tsrc"?|?cut?-d?'?'?-f 1`

????????odst_inode=`ls?-lid?"$tdst"?|?cut?-d?'?'?-f 1`

????????XECHO osrc_inode:$osrc_inode odst_inode:$odst_inode

????????if?[?"$nsrc_inode"?=?"$osrc_inode"?-a?"$ndst_inode"?=?"$odst_inode"?];?then

????????????if?[?${1:((${#1}-1))}?=?'/'?-a ${tsrc:((${#tsrc}-1))}?!=?'/'?]?\

????????????????||?[?${1:((${#1}-1))}?!=?'/'?-a ${tsrc:((${#tsrc}-1))}?=?'/'?];?then?#/home?and?/home/?is?very?

????????????????echo?-n?"";

????????????else

????????????????return 0

????????????fi

????????fi

????done?<?$db_pathname

????return 1?

}

extract_src_dst()

{

????XECHO?"extract src dst from $1"

????src="${1%#*}"?

????dst="${1#$src}"?

????dst="${dst#\#}"?

????XECHO?"src: $src"

????XECHO?"dst: $dst"

????if?[?"$src"?=?""?-o?"$dst"?=?""?];?then

????????return 1

????else

????????return 0

????fi

}

fix_path()

{

????local srcpath="$1"

????if?[?"${srcpath:0:1}"?=?'/'?];?then

????????echo $srcpath?

????elif?[?"${srcpath:0:2}"?=?'./'?];?then

????????echo `pwd`/${srcpath:2}

????else?

????????echo `pwd`/$srcpath

????fi

}

insert_new_item()

{

????XECHO add item src:"$1"?dst:"$2"?exclude:"$3"

????tmp1="${1// /@#@}"

????tmp2="${2// /@#@}"

????tmp3="${3// /@#@}"

????echo?"$tmp1"?"$tmp2"?"$tmp3"?>>?$db_pathname

????return $?

}

parse_item()

{

????if?!?extract_src_dst?"$1";?then

????????color_echo r?"src:$src or dst:$dst is illegal!"

????????return 1

????fi

????src=`fix_path?"$src"`

????dst=`fix_path?"$dst"`

????XECHO after fixed,?src:"$src"

????XECHO after fixed,?src:"$dst"

????return 0

}

do_add()?

{

????local item

????

????color_echo g?"Enter the mode of adding files! Some patterns are available, as follows:"

????color_echo g?"eg: /home/#/tmp/ means we want to backup the whole things which "

????color_echo g?"are under home directory to /tmp directory."

????color_echo g?"eg: /home/#/tmp/:/etc/#/tmp/ means we want to backup the whole "

????color_echo g?"things which are under the home directory and the /etc/ directory "

????color_echo g?"to the /tmp directory, you can append any item with ':'."

????color_echo r?"Note: /home and /home/ are quite different, because /home just means "

????color_echo r?"/home itself while /home/ means the whole contents of /home."

????read?-p?"Please type in file items: "?items

????items="`echo "$items" | sed "s/'//g"`"

????flag=0

????while?[?$flag?=?0?];?

????do?

????????item=${items%%:*}

????????items=${items#$item:}

????????ex_src=""

????????if?[?"$items"?=?"$item"?];?then?

????????????flag=1

????????fi?

????????if?parse_item?"$item";?then

????????????check_src_dst?"$src"?"$dst"

????????????ret=$?

????????????if?[?"$ret"?=?0?];?then

????????????????color_echo y?"Warning! ""$src#$dst"" is already existed! do not re-submit!"?

????????????????continue

????????????elif?[?"$ret"?=?2?];?then

????????????????continue

????????????fi

????????????read?-p?"Would you like to add some excluding conditions to $src: (y/n)[n] "?yn

????????????if?[?"$yn"?=?y?];?then

????????????????color_echo r?"Note: this is an expert mode, and we don't check your pattern"

????????????????color_echo r?"is valid or not. Some patterns are available, as follows:"

????????????????color_echo r?"eg: if your src directory is /home, and your want to exclude"

????????????????color_echo r?"the directory /home/rongp, then you should type in \"rongp\"."?

????????????????color_echo r?"eg: if your src directory is /home, and your want to exclude"

????????????????color_echo r?"the directory /home/rongp and /home/test, then you should"?

????????????????color_echo r?"type in \"rongp:test\", and you can append any item with ':' ."

????????????????

????????????????read?-p?"Please type in paths to the excluding files: "?exitem?

????????????????ex_src="$exitem"

????????????fi

????????????if?insert_new_item?"$src"?"$dst"?"$ex_src";?then

????????????????echo?""$src"#"$dst" add successed!"

????????????else?

????????????????echo?""$src"#"$dst" add failed!"

????????????fi

????????else?

????????????read?-p?"skip it? Yy/Nn:[n] "?yn

????????????if?[?"$yn"?=?"y"?-o?"$yn"?=?"Y"?];?then

????????????????continue

????????????fi

????????????return 1

????????fi

????done

????return 0

}

get_choices()

{

????local total_line=`wc?-l $db_pathname?|?cut?-d?'?'?-f 1`

????

????select_tab=

????color_echo g?"Enter the mode of "$1"! some patterns are available, as follows:"

????color_echo g?"eg: 1-3 means select no 1 2 3 item"

????color_echo g?"eg: 1:3:5 means select no 1 3 5 item"

????color_echo g?"you can append any no with ':' or '-', but don't mix use it."

????color_echo g?"no 0 means select all."

????do_print

????read?-p?"Please type in the number: "?NO

????if?[?"${NO/-/ }"?!=?"$NO"?];?then?

????????num_tab=(${NO//-/?})

????????[?${#num_tab[@]}?-gt 2?]?&&?\

????????????echo?"Select failed, argument $NO is illegal!"?&&?return 1

????????

????????num0=${num_tab[0]}

????????num1=${num_tab[1]}

????????XECHO num0:$num0 num1:$num1

????????if?[?-z?"${num0//[0-9]/}"?-a?"$num0"?-le?"$total_line"?-a?"$num0"?-gt?"0"?]\

???????????&&?[?-z?"${num1//[0-9]/}"?-a?"$num1"?-le?"$total_line"?-a?"$num1"?-gt?"0"?]\

???????????&&?[?"$num0"?-lt?"$num1"?];?

????????then

????????????select_tab=(`seq $num0 $num1`)

????????else?

????????????echo?"Select failed, argument $NO is illegal!"?&&?return 1

????????fi

????elif?[?"${NO/:/ }"?!=?"$NO"?];?then

????????for?num?in?${NO//:/?}

????????do

????????????if?[?-z?"${num//[0-9]/}"?]&&[?"$num"?-le?"$total_line"?]\

????????????????&&[?"$num"?-gt?"0"?];?then

????????????????continue

????????????else?

????????????????echo?"Select failed, argument $num is illegal!"?&&?return 1

????????????fi

????????done

????????j=0

????????for?i?in?${NO//:/?}

????????do

????????????select_tab[j]=$i

????????????((j++))

????????done

????else?

????????if?[?"$NO"?=?0?];?then

????????????select_tab=(`seq 1 $total_line`)

????????elif?[?-z?"${NO//[0-9]/}"?]&&[?"$NO"?-le?"$total_line"?]\

????????????????&&[?"$NO"?-gt?"0"?];?then

????????????select_tab[0]=${NO}

????????else?

????????????echo?"Select failed, argument $NO is illegal!"?&&?return 1

????????fi

????fi

????return 0

}

do_del()?

{

????if?!?get_choices?"deleting files";?then

????????return 1

????fi

????local total_num=${#select_tab[@]}

????if?[?"$total_num"?=?1?];?then

????????nums=${select_tab[0]}d

????elif?[?"$total_num"?=?2?];?then

????????nums=${select_tab[0]},${select_tab[1]}d

????else?

????????for?((i=0;?i<$total_num;?++i))

????????do

????????????nums+="${select_tab[i]}d;"

????????done

????fi

????sed?-i?"$nums"?$db_pathname?>/dev/null?2>&1

????[?"$?"?=?0?]?&&?echo?"$NO delete successed!"?||?echo?"$NO delete failed, delete failed!"

}

do_print()

{

????[?!?-s $db_pathname?]?&&?color_echo y?"Warning, no record found!"?&&?return 1

????echo?" no source destination action"

????cat?-n $db_pathname?|?sed?'s/@#@/?/g'

}

check_in_select_tab()

{

????local i

????for?((i=0;?i<${#select_tab[@]};?++i))

????do

????????XECHO $1:select_tab[$i]:${select_tab[i]}

????????if?[?"${select_tab[i]}"?=?"$1"?];?then

????????????return 0

????????fi

????done

????return 1

}

do_backup()

{

????local ex_file=`mktemp`

????local fake="${1/fake/-n}"

????local yes="${1/yes/y}"

????[?!?-f?"$db_pathname"?]?&&?color_echo r?"$db_pathname does not exist!"?&&?return 1

????if?!?get_choices?"backup";?then

????????return 1

????fi

????local i=0

????local k=0

????while?read?-r src dst ex_src;

????do

????????if?check_in_select_tab $((i+1));?then

????????????XECHO?"$i in select table"

????????????src="${src//@#@/ }"

????????????dst="${dst//@#@/ }"

????????????XECHO src:$src dst:$dst ex_src:$ex_src ex_file:$ex_file

????????????src_tab[k]="$src"

????????????dst_tab[k]="$dst"

????????????ex_src_tab[k]="$ex_src"

????????????((k++))

????????fi

????????((i++))

????done?<?$db_pathname

????for?((j=0;?j<$k;?++j))

????do

????????echo src:${src_tab[j]}?dst:${dst_tab[j]}?ex_src:${ex_src_tab[j]}

????????src="${src_tab[j]}"

????????dst="${dst_tab[j]}"

????????ex_src="${ex_src_tab[j]}"

????????echo?"$ex_src"?|?awk?-F?':'?'{for?(i=1;i<=NF;++i)print $i}'?|?sed?'s/@#@/?/g'?>?$ex_file

????????if?[?"$src"?=?"/"?];?then

????????????tmpsrc=$(blkid `mount?|?grep?"/ "?|?cut?-d?'?'?-f 1`?|?awk?-F?"\"" '{print $2}')

????????else?

????????????tmpsrc="$src"

????????fi

????????

????????if [ "$dst" = "/" ]; then

????????????tmpdst=$(blkid `mount | grep "/?" | cut -d ' ' -f 1` | awk -F "\""?'{print $2}')

????????else?

????????????tmpdst="$dst"

????????fi

????????color_echo g?"We will start backup from "

????????color_echo r?"$src"

????????color_echo g?to?

????????color_echo r?"$dst"?

????????color_echo g?"with excluding file or directory"?

????????color_echo r?"${ex_src//@#@/ }"

????????color_echo gn?"continue or not? y/n: "

????????if?[?"$yes"?=?y?];?then?

????????????yn=y

????????else?

????????????read yn

????????fi

????????if?[?"$yn"?=?y?];?then

????????????echo Start backup?"$src"?to?"$dst"?with excluding file?or?directory?"$ex_src"

????????????(

????????????flock?-x 200

????????????rsync?-avzrtopg $fake?--progress?--delete?--exclude-from=$ex_file?\

????????????????"$src"?"$dst"?--backup?--backup-dir=$inc_path/$(date?+%Y-%m-%d_%H:%M:%S_$(basename ${tmpsrc})_$(basename $tmpdst))

????????????)?200>/var/lock/abc

????????????echo Backup $src?to?$dst with excluding file?or?directory $ex_src?

????????else?

????????????echo Skip backup $src?to?$dst with excluding file?or?directory $

????????fi

????done

????

}

get_answer()

{

????local ret

????if?[?"$4"?!=?""?];?then

????????tmpbackup="$4"

????else

????????tmpbackup=backup.cfg.bak

????fi

????while?:

????do

????????read?-p?"Type in $1 path of the backup(default is $2, q for exit): "?ans_tmp?

????????if?[?"$ans_tmp"?=?q?];?then

????????????ret=1

????????????break

????????elif?[?"$ans_tmp"?!=?""?];?then?

????????????if?[?!?-d?"$ans_tmp"?];?then

????????????????echo?"$1: $ans_tmp is invalid!"?

????????????????read?-p?"Would you like to create it now? y/n [y]: "?yn

????????????????if?[?"$yn"?=?y?];?then

????????????????????mkdir?-p $ans_tmp

????????????????else

????????????????????continue

????????????????fi

????????????fi

????????????sed?-i?"s,$3.*,$3$ans_tmp,g"?$tmpbackup

????????????ret=$?

????????????break

????????else

????????????ans_tmp="$2"

????????????ret=0?

????????????break

????????fi

????done

????return $ret

}

already_install()

{

????if?load_cfg $backup_cfg s;?then

????????XECHO?"already install"

????????return 0 #has install

????fi

????return 1

}

do_install()

{?

????color_echo g start install

????if?already_install;?then?

????????color_echo y?"We check that you have already installed, you should"

????????color_echo yn?"uninstall first, would you want to uninstall it first?y/n[n] "

????????read yn

????????if?[?"$yn"?!=?y?];?then

????????????color_echo g install?

????????????color_echo r install?

????????????return 1

????????else?

????????????do_uninstall

????????fi

????fi

????cp?-f backup.cfg backup.cfg.bak

????load_cfg backup.cfg.bak s

????if?[?"$?"?=?1?];?then

????????exit

????fi

????if?!?get_answer?"executable file backup"?"$bin_path"?"INSTALL_PATH=";then

????????color_echo g install?

????????color_echo r install?

????????return 1

????fi

????install_path=$ans_tmp

????color_echo g install path?is?$install_path

????if?!?get_answer?"database"?"$db_path"?"DB_PATH=";then

????????color_echo g install?

????????color_echo r install?

????????return 1

????fi

????db_path=$ans_tmp

????color_echo g database path?is?$db_path

????if?!?get_answer?"incremental backup"?"$inc_path"?"INCREMENTAL_BACKUP_PATH=";then

????????color_echo g install?

????????color_echo r install?

????????return 1

????fi

????inc_path=$ans_tmp

????color_echo g incremental backup path?is?$inc_path

????echo?

????who=`whoami`

????cp backup $install_path

????color_echo g install backup?to?$install_path

????ret=$?

????mv backup.cfg.bak $backup_cfg

????color_echo g install $backup_cfg

????ret=$((ret+$?))

????mkdir?-p $db_path

????color_echo g install $db_path

????ret=$((ret+$?))

????mkdir?-p $inc_path

????color_echo g install $inc_path

????ret=$((ret+$?))

????ln?-s $db_path $inc_path/db

????color_echo g install $inc_path/db

????ret=$((ret+$?))

????color_echo g install?

????if?[?$ret?-gt 0?];?then?

????????color_echo r install?

????????[?-e $bin_path/backup?]?&&?rm_print $bin_path/backup

????????[?-e $backup_cfg?]?&&?rm_print $backup_cfg

????????[?-e $inc_path/db?]?&&?rm_print $inc_path/db?&&?rm_print?-rf $inc_path

????????[?-e $db_pathname?]?&&?rm_print $db_pathname

????????rm_print?-d $db_path

????????return 1

????fi

????echo?

????echo?

????color_echo y?"The installation work is done, and you can remove this package now!"

????color_echo y?"Note: you should put the executable file \"backup\""

????color_echo y?"into \$PATH and you need to get \"root\" privileges to execute it."

????color_echo y?"for example, you can execute it like this in ubuntu: sudo backup"

????return 0

}

rm_print()

{

????color_echo g remove $@

????eval rm $@

}

do_uninstall()

{

????XECHO?"Perform the un-installation."

????color_echo g perform the un-installation...

????if?!?load_cfg $backup_cfg;?then?

????????color_echo g uninstall?

????fi

????[?-e $bin_path/backup?]?&&?rm_print $bin_path/backup

????[?-e $backup_cfg?]?&&?rm_print $backup_cfg

????[?-e $inc_path/db?]?&&?rm_print $inc_path/db?&&?rm_print?-rf $inc_path

????[?-e $db_pathname?]?&&?rm_print $db_pathname

????rm_print?-d $db_path

????color_echo g uninstall?

????color_echo g uninstall?

}

load_cfg()

{

????if?[?!?-e?"$1"?];?then

????????[?"$2"?!=?"s"?]?&&?color_echo r?"Error, we can't find the configure file $1, exit now!"

????????return 1

????fi

????bin_path=`sed?-n?'s/INSTALL_PATH=\(.*\)/\1/p'?$1`

????db_path=`sed?-n?'s/DB_PATH=\(.*\)/\1/p'?$1`

????db_pathname=$db_path/backup.db

????inc_path=`sed?-n?'s/INCREMENTAL_BACKUP_PATH=\(.*\)/\1/p'?$1`

????if?[?!?-d?"$inc_path"?];?then?

????????[?"$2"?!=?"s"?]?&&?color_echo r Load configuration file your should

????????[?"$2"?!=?"s"?]?&&?color_echo r check the directory $db_pathname?is?valid?or?

????????return 2

????fi

????XECHO database path?is?$db_path

????XECHO database file path?is?$db_pathname

????XECHO incremental backup path?is?$inc_path

????return 0

}

show_configure()

{

????color_echo g executable backup?is?in?$bin_path

????color_echo g database directory?is?in?$db_path

????color_echo g incremental backup directory?is?in?$inc_path

}

do_modify_inc_backup_path()

{

????if?!?get_answer?"incremental backup"?"$inc_path"?\

????????"INCREMENTAL_BACKUP_PATH="?$backup_cfg;then

????????return 1

????fi

????inc_path=$ans_tmp

????XECHO incremental backup?is?$inc_path

????return 0

}

do_configure()

{

????color_echo g?[1]?modify incremental backup path

????color_echo g?[2]?...

????read?-p?"Please type in the no which you are expecting to: "?no

????if?[?"$no"?=?1?];?then

????????do_modify_inc_backup_path

????else

????????color_echo r Unsupported?

????fi

}

backup_start()

{

????if?!?load_cfg $backup_cfg;?then?

????????exit

????fi

????while?:

????do

????????read?-p?"Command (h for help): "?cmd

????????case?"$cmd"?in

????????????a)

????????????????do_add

????????????????;;

????????????d)

????????????????do_del?

????????????????;;

????????????p)

????????????????do_print

????????????????;;

????????????c)

????????????????do_configure?

????????????????;;

????????????b)

????????????????do_backup?

????????????????;;

????????????bf)

????????????????do_backup yes?

????????????????;;

????????????n)

????????????????do_backup fake

????????????????;;

????????????s)

????????????????show_configure

????????????????;;

????????????i)

????????????????do_install

????????????????;;

????????????u)

????????????????do_uninstall

????????????????exit

????????????????;;

????????????q)

????????????????break

????????????????;;

????????????h?|?*)

????????????????help?

????????????????;;

????????esac

????done

}

username=`echo $USER`

if?[?"$username"?!=?root?];?then

????color_echo r?"Error, you need to have \"root\" privileges to execute this program."

????exit

fi

if?[?"$1"?=?"-i"?];?then

????if?!?do_install;?then

????????color_echo y?"Sorry, We can't continue any more. Exit now!"?

????fi

????exit

elif?[?"$1"?=?"-u"?];?then

????do_uninstall?

????exit

elif?[?"$1"?=?"-h"?];?then

????_help

????exit

fi

if?[?!?-e $backup_cfg?];?then?

????color_echo r?"$backup_cfg does not exist! "

????read?-p?"You need to install the backup first. perform the installation? y/n?[y]: "?yn?

????if?[?"$yn"?!=?n?];?then

????????do_install

????else

????????echo Sorry,?we can\'t continue any more.?Exit?

????fi

????exit

fi

backup_start

這是配置文件

點擊(此處)折疊或打開

#############################

######

#############################

AUTHOR=rongp

EMAIL=rongpmcu@gmail.com

VERSION=1.0

INSTALL_PATH=/usr/bin/

DB_PATH=/var/lib/backup/

INCREMENTAL_BACKUP_PATH=/var/lib/backup/incr_backup

git路徑：git@bitbucket.org:rongpmcu/backup-script-shell.git

【作者】張昺華 【出處】http://www.cnblogs.com/sky-heaven/ 【博客園】 http://www.cnblogs.com/sky-heaven/ 【新浪博客】 http://blog.sina.com.cn/u/2049150530 【知乎】 http://www.zhihu.com/people/zhang-bing-hua 【我的作品---旋轉倒立擺】 http://v.youku.com/v_show/id_XODM5NDAzNjQw.html?spm=a2hzp.8253869.0.0&from=y1.7-2 【我的作品---自平衡自動循跡車】 http://v.youku.com/v_show/id_XODM5MzYyNTIw.html?spm=a2hzp.8253869.0.0&from=y1.7-2 【新浪微博】 張昺華--sky 【twitter】 @sky2030_ 【facebook】 張昺華 zhangbinghua 本文版權歸作者和博客園共有，歡迎轉載，但未經作者同意必須保留此段聲明，且在文章頁面明顯位置給出原文連接，否則保留追究法律責任的權利.

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