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  1. or download this
    %U     week of year, Sunday as first day of week     - 01 to 53
%W     week of year, Monday as first day of week     - 01 to 53
  2. or download this
    get today's date.
get today's week of year. (WOY)
while the current day's WOY = today's WOY
    retrieve and print articles
  3. or download this
    use POSIX;
use strict;
...
        $check = strftime("%W",localtime($today));
    }
}