What does :: (double colon) mean in DOS batch files?

Question

I found this program http://baiyunmanor.com/blog/work/get-current-date-time-in-dos-batch-file/

But I don\'t know what does the line

:: datetime.bat
<         


        

Answer 1

The colon (:) is a label marker and can be used for got instructions.

Some people use : as a comment too so a double colon is simply a stylistic REM statement