以下是需要備份檔案的一個bat 批處理指令碼，備份昨天C:\Users\Administrator\Desktop\\111\2020\03\05目錄下面的檔案，

需要寫一個批處理檔案，首先考慮需要獲取昨天的日期，以及建立一個日期的目錄存放備份，檢視要備份的檔案個數檔案的大小，

備份完的檔案大小個數的多少，在進行前後的比較一下，程式碼如下：

rem: "author is czb"

rem: "create scripts time 2020-03-05"

@echo off

set date_time=%date:~0,4%%date:~5,2%%date:~8,2%_0%time:~1,1%%time:~3,2%%time:~6,2%

set suiji=%random%

echo initing...........

rem:"獲取昨天的時間"

@echo off

set YE=%date:~0,4%

set MO=%date:~5,2%

set DA=%date:~8,2%

set DG=1

set/a vY1=%YE% %% 400

set/a vY2=%YE% %% 4

set/a vY3=%YE% %% 100

if %vY1%==0 (set var=true) else (if %vY2%==0 (if %vY3%==0 (set var=false) else (set var=true)) else (set var=false))

set LY=%YE%

set LM=%MO%

if %MO:~0,1%==0 (set MO=%MO:~1,1%)

if %DA:~0,1%==0 (set DA=%DA:~1,1%)

if %DA% GTR %DG% (set/a LD=%DA%-%DG%) else (

if %MO%==1 (set/a LY=%YE%-1) & (set/a LM=12) & (set/a LD=31+%DA%-%DG%) else (

set/a LM=%MO%-1

if %MO%==3 (if %var%==false (set/a LD=28+%DA%-%DG%) else (set/a LD=29+%DA%-%DG%))

for %%a in (2 4 6 8 9 11) do (if "%MO%"=="%%a" (set/a LD=31+%DA%-%DG%))

for %%b in (5 7 10 12) do (if "%MO%"=="%%b" (set/a LD=30+%DA%-%DG%))))

if %LM% LSS 10 set LM=0%LM:~-1%

if %LD% LSS 10 set LD=0%LD:~-1%

set strLstDt=%LY%%LM%%LD%

echo 昨天的日期為：%strLstDt%

echo.

rem:"dirPath定義預備份檔案的路徑（%LY%/%LM%/%LD% 固定格式） tarPath定義備份檔案的路徑 logpath定義備份時產生的日誌路徑"

set dirPath=C:\Users\Administrator\Desktop\新建資料夾\111\%LY%/%LM%/%LD%

set tarPath=C:\Users\Administrator\Desktop\新建資料夾

set logpath=C:\Users\Administrator\Desktop\新建資料夾\logs

rem:"檢視預備份檔案的個數以及大小"

cd %dirPath%

setlocal enabledelayedexpansion

set /a countbegin = 0

set /a file1sizebegin = 0

for /f %%i in ('dir /b /s /a-d') do (

set /a countbegin=countbegin+1

set /a file1sizebegin=file1sizebegin+%%~zi

)

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

echo 預備份目錄%cd% 檔案數：!countbegin!個檔案大小和：!file1sizebegin!個位元組 >>%logpath%\"%strLstDt%_%suiji%".log

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

)

popd

rem:"建立備份目錄以及備份預備份的檔案"

set str_time_first_bit="%time:~0,1%"

if %str_time_first_bit%==" " (

set str_date_time=%date:~0,4%%date:~5,2%%date:~8,2%_0%time:~1,1%%time:~3,2%%time:~6,2%

)else (

set str_date_time=%date:~0,4%%date:~5,2%%date:~8,2%_%time:~0,2%%time:~3,2%%time:~6,2%

)

echo The folder is about to be created: %strLstDt%_%suiji%_backups

set targetpath="%tarPath%"\%strLstDt%_%suiji%_backups

mkdir "%targetpath%"

set copytimebegin=%date:~0,4%-%date:~5,2%-%date:~8,2% %time:~0,2%:%time:~3,2%:%time:~6,2%

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

echo 建立要備份的目錄: %targetpath% 成功！！！！ >>%logpath%\"%strLstDt%_%suiji%".log

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

set a=%time%

echo 開始執行備份，開始備份的時間為%copytimebegin%>>%logpath%\"%strLstDt%_%suiji%".log

echo D|xcopy %dirPath%\*.* %targetpath% /s /q

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

echo 備份檔案到 %targetpath% 成功！！！！>>%logpath%\%strLstDt%_%suiji%.log

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

set copytimeend=%date:~0,4%-%date:~5,2%-%date:~8,2% %time:~0,2%:%time:~3,2%:%time:~6,2%

set b=%time%

echo 結束執行備份，結束備份的時間為%copytimeend%>>%logpath%\"%strLstDt%_%suiji%".log

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

rem:"檢視備份檔案的個數以及大小"

cd "%targetpath%"

setlocal enabledelayedexpansion

set /a count = 0

set /a file1size = 0

for /f %%i in ('dir /b /s /a-d') do (

set /a count=count+1

set /a file1size=file1size+%%~zi

)

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

echo 備份目錄%cd% 檔案數：!count!個檔案大小和：!file1size!個位元組 >>%logpath%\"%strLstDt%_%suiji%".log

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

)

popd

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

rem :"計算開始備份到結束備份總共花費的時間"

@echo off

set /a h1=%a:~0,2%

set /a m1=1%a:~3,2%-100

set /a s1=1%a:~6,2%-100

set /a h2=%b:~0,2%

set /a m2=1%b:~3,2%-100

set /a s2=1%b:~6,2%-100

if %h2% LSS %h1% set /a h2=%h2%+24

set /a ts1=%h1%*3600+%m1%*60+%s1%

set /a ts2=%h2%*3600+%m2%*60+%s2%

set /a ts=%ts2%-%ts1%

set /a h=%ts%/3600

set /a m=(%ts%-%h%*3600)/60

set /a s=%ts%%%60

echo 本次備份!count!個檔案成功！！！備份總共耗時的時間為%h%小時%m%分%s%秒 >>%logpath%\"%strLstDt%_%suiji%".log

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

echo ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>>%logpath%\"%strLstDt%_%suiji%".log

rem : 校驗預備份檔案與備份檔案

if %countbegin% == %count% if %file1sizebegin% == %file1size% (echo 預備份檔案的個數、檔案的大小與備份檔案的個數、大小相等，此備份校驗成功！！！！>>%logpath%\"%strLstDt%_%suiji%".log)

else (

echo 此備份備份失敗！！！！

)

echo ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++>>%logpath%\"%strLstDt%_%suiji%".log

echo ===============================================================================================>>%logpath%\"%strLstDt%_%suiji%".log

exit

副本如下：

windows 批處理備份目錄指令碼檔案備份指令碼2.txt

windows 批處理備份目錄指令碼

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