China DOS Union

There is an application that creates subdirectories named with dates under the c:\home directory every day, such as 2004-07-24. I want to use a batch process to implement the backup of this directory. I don't know how to do it well. There are nearly three months of such subdirectories in c:\home. I want to judge the directories to be backed up by comparing the current date and the directory name. Is that possible? And how to implement it?

1. Your question was ignored because the title was not clear enough (it is recommended that you carefully read the sticky post). I suggest writing it like this: How to generate an environment variable with the current date as the content in batch processing?
2. The running environment you provided is not detailed enough. For example, under which system will you run this batch file, is it pure DOS, or 98, or 2k/xp/2003?
3. Your problem is not a very difficult one to solve, but different environments require different methods. Under 2k/xp/2003, you can directly use the %date% environment variable as the current date. Using Horst's varset and lmod programs can also achieve this (this should be considered a general solution, and I tested it under 2003):
varset d=date | lmod /L1 /B. -- > temp.bat call temp.bat del temp.bat
After the above command is run, the d environment variable will store the current date in the yyyy - mm - dd format.

May I ask the original poster, has this problem been resolved?