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
::========================================================================
::== CREATE UNIQUE DATETIME STRING IN FORMAT YYYYMMDD-HHMMSS
::======= ================================================================
FOR /f %%a IN ('WMIC OS GET LocalDateTime ^| FIND "."') DO SET DTS=%%a
SET DATETIME=%DTS:~0,8%-%DTS:~8,6%
第一行输出的格式与时区无关: 20150515150941.077000 + 120 这样，您只需按照自己的愿望格式化输出即可。
其他回答
REM Assumes UK style date format for date environment variable (DD/MM/YYYY).
REM Assumes times before 10:00:00 (10am) displayed padded with a space instead of a zero.
REM If first character of time is a space (less than 1) then set DATETIME to:
REM YYYY-MM-DD-0h-mm-ss
REM Otherwise, set DATETIME to:
REM YYYY-MM-DD-HH-mm-ss
REM Year, month, day format provides better filename sorting (otherwise, days grouped
REM together when sorted alphabetically).
IF "%time:~0,1%" LSS "1" (
SET DATETIME=%date:~6,4%-%date:~3,2%-%date:~0,2%-0%time:~1,1%-%time:~3,2%-%time:~6,2%
) ELSE (
SET DATETIME=%date:~6,4%-%date:~3,2%-%date:~0,2%-%time:~0,2%-%time:~3,2%-%time:~6,2%
)
ECHO %DATETIME%
:: =============================================================
:: Batch file to display Date and Time seprated by undescore.
:: =============================================================
:: Read the system date.
:: =============================================================
@SET MyDate=%DATE%
@SET MyDate=%MyDate:/=:%
@SET MyDate=%MyDate:-=:%
@SET MyDate=%MyDate: =:%
@SET MyDate=%MyDate:\=:%
@SET MyDate=%MyDate::=_%
:: =============================================================
:: Read the system time.
:: =============================================================
@SET MyTime=%TIME%
@SET MyTime=%MyTime: =0%
@SET MyTime=%MyTime:.=:%
@SET MyTime=%MyTime::=_%
:: =============================================================
:: Build the DateTime string.
:: =============================================================
@SET DateTime=%MyDate%_%MyTime%
:: =============================================================
:: Display the Date and Time as it is now.
:: =============================================================
@ECHO MyDate="%MyDate%" MyTime="%MyTime%" DateTime="%DateTime%"
:: =============================================================
:: Wait before close.
:: =============================================================
@PAUSE
:: =============================================================
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
创建一个名为“search_files.bat”的文件，并将下面的内容放入该文件中。然后双击它。临时的%THH%变量被放置在适当的位置来处理AM。如果时间的前两位数字为0,Windows将忽略LOG文件的其余文件名。
CD .
SET THH=%time:~0,2%
SET THH=%THH: =0%
dir /s /b *.* > %date:~10,4%-%date:~4,2%-%date:~7,2%@%THH%.%time:~3,2%.%time:~6,2%.LOG
如果安装了PowerShell，那么您可以轻松可靠地以任何您想要的格式获取日期/时间，例如:
for /f %%a in ('powershell -Command "Get-Date -format yyyy_MM_dd__HH_mm_ss"') do set datetime=%%a
move "%oldfile%" "backup-%datetime%"
当然，现在总是安装PowerShell，但在Windows XP上，你可能只会想要使用这种技术，如果你的批处理脚本是在一个已知的环境中使用，你知道PS可用(或者检查你的批处理文件，如果PowerShell可用…)
你可能会合理地问:如果你可以使用PowerShell来获取日期/时间，为什么还要使用批处理文件，但我认为一些明显的原因是:(a)你对PowerShell并不熟悉，仍然更喜欢用老式的批处理文件方式来做大多数事情;或者(b)你正在更新一个旧脚本，不想把整个脚本移植到PS上。
