Date function

Hi,

is there a date function in Perl or do I have to try to find a module?

What i need is to be able to come up with the current date, then
subtract one day, and add that to the file name in the form of:

YYYY-MM-DD-RestOfFileName.txt

The script I have written parses these files and I want to run it every
night after midnight on the previous days file which has the naming
convention above.

I am running ActiveState Perl in a Windows environment.

Thanks.

.

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