Subtract 24*60*60 seconds from the unix time before using localtime to split into units.

I recommend POSIX::strftime for converting that to a string. 

use POSIX 'strftime';
print strftime "%Y_%m_%d_%H_%M_%S/n", localtime() - 24 * 60 * 60;

[download]
prints this time yesterday in your format.

After Compline,
Zaxo

In reply to Re: How to subtract date by 1 day by Zaxo
in thread How to subtract date by 1 day by ewhitt

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