Windows批处理：格式化的日期到变量 [英] Windows batch: formatted date into variable

问题描述

如何保存在YYYY-MM-DD格式的当前日期插入到Windows中的某些变量.bat文件？
Unix外壳模拟：

How to save current date in YYYY-MM-DD format into some variable in Windows .bat file? Unix shell analogue:

today=`date +%F`
echo $today

感谢

推荐答案

您可以用获取当前日期的语言环境无关的方式

You can get the current date in a locale-agnostic way using

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

然后就可以使用提取子的各个部分：

Then you can extract the individual parts using substrings:

set today=%MyDate:~0,4%-%MyDate:~4,2%-%MyDate:~6,2%

另一种方式，你在哪里得到包含各个部分的变量，将是：

Another way, where you get variables that contain the individual parts, would be:

for /f %%x in ('wmic path win32_localtime get /format:list ^| findstr "="') do set %%x
set today=%Year%-%Month%-%Day%

比摆弄子在污染你的变量命名空间为代价更好。

Much nicer than fiddling with substrings, at the expense of polluting your variable namespace.

如果您需要UTC而不是本地时间，命令或多或少是一样的：

If you need UTC instead of local time, the command is more or less the same:

for /f %%x in ('wmic path win32_utctime get /format:list ^| findstr "="') do set %%x
set today=%Year%-%Month%-%Day%

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