生成唯一的文件名与批处理脚本时间戳 [英] Generate unique file name with timestamp in batch script

问题描述

在我的.bat文件我想要生成基于日期时间的文件/目录的唯一名称。

In my .bat file I want to generate a unique name for files/directories based on date-time.

例如

Build-2009-10-29-10-59-00

问题是，％TIME％不会做，因为它包含在文件名非法字符（如：）。

The problem is that %TIME% won't do because it contains characters that are illegal in filename (e.g. ':').

有没有在批处理文件中像'TR'？

Is there something like 'tr' in batch files?

任何其他的想法如何解决这个（不从批间preTER需要额外的命令行实用程序除外）？

Any other ideas how to solve this (that don't require extra command line utilities aside from the batch interpreter)?

推荐答案

编辑：这样做的更好的方法是采取具有确定不变的格式，而不是使用语言环境定义那些从一个日期/时间字符串％DATE％和％TIME％。您可以使用以下方法来得到它：

A better way of doing this is to take a date/time string that has a defined and unchanging format instead of using the locale-defined ones from %date% and %time%. You can use the following to get it:

for /f "skip=1" %%x in ('wmic os get localdatetime') do if not defined mydate set mydate=%%x

它会产生类似 20120730203126.530000 + 120 键，你可以用它来构建你的文件名。

It yields something like 20120730203126.530000+120 and you can use that to construct your file names.

（下旧的答案）

您可以简单地用一个空字符串替换有问题的字符：

You can simply replace the offending character with an empty string:

echo %time::=%

语法％VAR如：str1 = STR2赛车％需要环境变量（或伪变量％TIME％并替换 STR1 > STR2 。如果没有遵循之后等号再签收 STR1 只是删除​​。

The syntax %var:str1=str2% takes the environment variable (or pseudo-variable in case of %TIME% and replaces str1 by str2. If nothing follows after the equals sign then str1 is simply deleted.

在您的具体情况下，我想你会希望以下内容：

In your specific case I think you'd want the following:

rem cut off fractional seconds
set t=%time:~0,8%
rem replace colons with dashes
set t=%t::=-%
set FileName=Build-%date%-%t%

一个更强力的方式的情况下，你不知道是否使用冒号（但时间顺序将是相同的）：

A more brute-force way in case you don't know whether colons are used (but the order of the time would be the same):

set FileName=Build-%date%-%time:~0,2%-%time:~3,2%-%time:~6,2%

所有preceding的事情，但是，假设你使用标准的ISO 8601日期格式，我。即2009-10-29。我以为这只是为正常，但是有些人使用其他格式的，所以要小心。但因为你并没有问我是假设你没有有问题存在的日期。

All preceding things, however, assume that you use standard ISO 8601 date format, i. e. 2009-10-29. I'd assume this as simply normal, but some people use other formats so be careful. But since you didn't ask about the date I was assuming you didn't have a problem there.

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