在Windows (Windows XP)批处理脚本中，我需要格式化当前日期和时间，以便以后在文件名等中使用。
这类似于堆栈溢出问题如何在批处理文件中添加日期，但也包含时间。
到目前为止，我有这个:
echo %DATE%
echo %TIME%
set datetimef=%date:~-4%_%date:~3,2%_%date:~0,2%__%time:~0,2%_%time:~3,2%_%time:~6,2%
echo %datetimef%
这使:
28/07/2009
8:35:31.01
2009_07_28__ 8_36_01
是否有一种方法可以允许%TIME%中的个位数小时，以便我可以得到以下结果?
2009_07_28__08_36_01
当前回答
为了在文件名中使用数字日期的一个非常简单的解决方案，请使用以下代码:
set month=%date:~4,2%
set day=%date:~7,2%
set curTimestamp=%month%%day%%year%
rem then the you can add a prefix and a file extension easily like this
echo updates%curTimestamp%.txt
其他回答
Windows中SET命令支持的offset:length格式将不允许您填充您似乎感兴趣的0。
但是，您可以编写一个BATCH脚本来检查小时是否小于10和 相应地用不同的回声字符串进行填充。
您将在此链接中找到关于SET命令的一些信息。
您还可以更改其他编程方法以达到此目的。
在unix bash (Windows上的Cygwin可用)中，只需说，
date +%Y_%m_%d__%H_%M_%S
它总是正确地填充。
下面是如何生成一个日志文件名(基于http://ss64.com/nt/syntax-getdate.html):)
@ECHO OFF
:: Check WMIC is available
WMIC.EXE Alias /? >NUL 2>&1 || GOTO s_error
:: Use WMIC to retrieve date and time
FOR /F "skip=1 tokens=1-6" %%G IN ('WMIC Path Win32_LocalTime Get Day^,Hour^,Minute^,Month^,Second^,Year /Format:table') DO (
IF "%%~L"=="" goto s_done
Set _yyyy=%%L
Set _mm=00%%J
Set _dd=00%%G
Set _hour=00%%H
SET _minute=00%%I
SET _second=00%%K
)
:s_done
:: Pad digits with leading zeros
Set _mm=%_mm:~-2%
Set _dd=%_dd:~-2%
Set _hour=%_hour:~-2%
Set _minute=%_minute:~-2%
Set _second=%_second:~-2%
Set logtimestamp=%_yyyy%-%_mm%-%_dd%_%_hour%_%_minute%_%_second%
goto make_dump
:s_error
echo WMIC is not available, using default log filename
Set logtimestamp=_
:make_dump
set FILENAME=database_dump_%logtimestamp%.sql
...
如果你不需要这个格式:
2009_07_28__08_36_01
然后你可以使用以下3行代码，使用%date%和%time%:
set mydate=%date:/=%
set mytime=%time::=%
set mytimestamp=%mydate: =_%_%mytime:.=_%
注意:字符/和:被删除，字符。空格被下划线取代。
示例输出(摄于8/5/15星期三下午12:49，时间为50秒93毫秒):
echo %mytimestamp%
Wed_08052015_124950_93
这是我对adatetime字符串的2美分。在MM DD YYYY系统上切换第一个和第二个%DATE:~条目。
REM ====================================================================================
REM CREATE UNIQUE DATETIME STRING FOR ADDING TO FILENAME
REM ====================================================================================
REM Can handle dd DDxMMxYYYY and DDxMMxYYYY > CREATES YYYYMMDDHHMMSS (x= any character)
REM ====================================================================================
REM CHECK for SHORTDATE dd DDxMMxYYYY
IF "%DATE:~0,1%" GTR "3" (
SET DATETIME=%DATE:~9,4%%DATE:~6,2%%DATE:~3,2%%TIME:~0,2%%TIME:~3,2%%TIME:~6,2%
) ELSE (
REM ASSUMES SHORTDATE DDxMMxYYYY
SET DATETIME=%DATE:~6,4%%DATE:~3,2%%DATE:~0,2%%TIME:~0,2%%TIME:~3,2%%TIME:~6,2%
)
REM CORRECT FOR HOURS BELOW 10
IF %DATETIME:~8,2% LSS 10 SET DATETIME=%DATETIME:~0,8%0%DATETIME:~9,5%
ECHO %DATETIME%
这个批处理脚本将完全按照O.P.的要求执行(在Windows XP SP3上测试)。
我还使用了前面“jph”所描述的聪明的注册表技巧，我认为这是在任何新的或旧的Windows系统上获得100%一致的日期格式“yyyy_MM_dd”的最简单方法。对一个注册表值的更改是瞬时、临时和微不足道的;它只持续几毫秒，然后立即恢复。
双击此批处理文件进行即时演示，命令提示符窗口将弹出并显示您的时间戳. . . . .
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:: generates a custom formatted timestamp string using date and time.
:: run this batch file for an instant demo.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
@ECHO OFF
SETLOCAL & MODE CON:COLS=80 LINES=15 & COLOR 0A
:: --- CHANGE THE COMPUTER DATE FORMAT TEMPORARILY TO MY PREFERENCE "yyyy_MM_dd",
REG COPY "HKCU\Control Panel\International" "HKCU\Control Panel\International-Temp" /f 2>nul >nul
REG ADD "HKCU\Control Panel\International" /v sShortDate /d "yyyy_MM_dd" /f 2>nul >nul
SET MYDATE=%date%
:: --- REVERT COMPUTER DATE BACK TO SYSTEM PREFERENCE
REG COPY "HKCU\Control Panel\International-Temp" "HKCU\Control Panel\International" /f 2>nul >nul
REG DELETE "HKCU\Control Panel\International-Temp" /f 2>nul >nul
:: --- SPLIT THE TIME [HH:MM:SS.SS] TO THREE SEPARATE VARIABLES [HH] [MM] [SS.SS]
FOR /F "tokens=1-3 delims=:" %%A IN ('echo %time%') DO (
SET HOUR=%%A
SET MINUTES=%%B
SET SECONDS=%%C
)
:: --- CHOOSE ONE OF THESE TWO OPTIONS :
:: --- FOR 4 DIGIT SECONDS //REMOVES THE DOT FROM THE SECONDS VARIABLE [SS.SS]
:: SET SECONDS=%SECONDS:.=%
:: --- FOR 2 DIGIT SECONDS //GETS THE FIRST TWO DIGITS FROM THE SECONDS VARIABLE [SS.SS]
SET SECONDS=%SECONDS:~0,2%
:: --- FROM 12 AM TO 9 AM, THE HOUR VARIABLE WE EXTRACTED FROM %TIME% RETURNS A SINGLE DIGIT,
:: --- WE PREFIX A ZERO CHARACTER TO THOSE CASES, SO THAT OUR WANTED TIMESTAMP
:: --- ALWAYS GENERATES DOUBLE-DIGIT HOURS (24-HOUR CLOCK TIME SYSTEM).
IF %HOUR%==0 (SET HOUR=00)
IF %HOUR%==1 (SET HOUR=01)
IF %HOUR%==2 (SET HOUR=02)
IF %HOUR%==3 (SET HOUR=03)
IF %HOUR%==4 (SET HOUR=04)
IF %HOUR%==5 (SET HOUR=05)
IF %HOUR%==6 (SET HOUR=06)
IF %HOUR%==7 (SET HOUR=07)
IF %HOUR%==8 (SET HOUR=08)
IF %HOUR%==9 (SET HOUR=09)
:: --- GENERATE OUR WANTED TIMESTAMP
SET TIMESTAMP=%MYDATE%__%HOUR%_%MINUTES%_%SECONDS%
:: --- VIEW THE RESULT IN THE CONSOLE SCREEN
ECHO.
ECHO Generate a custom formatted timestamp string using date and time.
ECHO.
ECHO Your timestamp is: %TIMESTAMP%
ECHO.
ECHO.
ECHO Job is done. Press any key to exit . . .
PAUSE > NUL
EXIT
