in reply to Re^3: sort csv file on "date" column
in thread sort csv file on "date" column

ok... I wanted to know what the numbers 6, [2,0,1] actually are. It he +lps me to customize the algorithm you provided if the date field is i +n other column. ~Manjunath

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Re^5: sort csv file on "date" column
by jwkrahn (Abbot) on Apr 26, 2009 at 23:30 UTC

    In your CSV file the date is in the month-day-year order.   The regular expression captures those numbers using parentheses and returns a list of those three numbers in month-day-year order.   The list of numbers is rearranged using a list slice so that the year is moved to the front of the list.   So the original order of month-day-year (0,1,2) is changed to year-month-day (2,0,1).

    The date format used has every field as a two digit number so the combination of the year, month and day fields is a string 6 characters long.