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Top Forums Shell Programming and Scripting Subtract 2 date columns in .csv file and get output as number of days Post 302752563 by Dimple on Monday 7th of January 2013 07:50:55 AM
Old 01-07-2013
Subtract 2 date columns in .csv file and get output as number of days

Hi,

I have one .csv file. I have 2 date columns present in file, column 2 and column 3.

I need to calculate how many days exist between 2 dates.

I am trying to subtract date column 2 from date column 3.
Eg: my file look likes

s.no, Start_date,End_Date
Code:
1, 7/29/2012,10/27/2012
2, 7/29/2012,8/11/2012

my output should be
Code:
90
13

like this.

I am not able to get command to calculate how many days exist between these 2 dates.
after that, As i need to check how many sundays exists between the dates. so I will divide number of days/7.
Please help.

Last edited by radoulov; 01-08-2013 at 04:49 AM..
 

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DATEPERIOD.__CONSTRUCT(3)						 1						 DATEPERIOD.__CONSTRUCT(3)

DatePeriod::__construct - Creates a new DatePeriod object

SYNOPSIS
public DatePeriod::__construct (DateTimeInterface $start, DateInterval $interval, int $recurrences, [int $options]) DESCRIPTION
DatePeriod::__construct (DateTimeInterface $start, DateInterval $interval, DateTimeInterface $end, [int $options]) DatePeriod::__con- struct (string $isostr, [int $options]) Creates a new DatePeriod object. PARAMETERS
o $start - The start date of the period. o $interval - The interval between recurrences within the period. o $recurrences - The number of recurrences. o $end - The end date of the period. o $isostr - An ISO 8601 repeating interval specification. o $options - Can be set to DatePeriod::EXCLUDE_START_DATE to exclude the start date from the set of recurring dates within the period. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.5.8 | | | | | | | $end type changed to DateTimeImmutable. Previ- | | | ously, DateTime. | | | | | 5.5.0 | | | | | | | $start type changed to DateTimeImmutable. Previ- | | | ously, DateTime. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 DatePeriod example <?php $start = new DateTime('2012-07-01'); $interval = new DateInterval('P7D'); $end = new DateTime('2012-07-31'); $recurrences = 4; $iso = 'R4/2012-07-01T00:00:00Z/P7D'; // All of these periods are equivalent. $period = new DatePeriod($start, $interval, $recurrences); $period = new DatePeriod($start, $interval, $end); $period = new DatePeriod($iso); // By iterating over the DatePeriod object, all of the // recurring dates within that period are printed. foreach ($period as $date) { echo $date->format('Y-m-d')." "; } ?> The above example will output: 2012-07-01 2012-07-08 2012-07-15 2012-07-22 2012-07-29 Example #2 DatePeriod example with DatePeriod::EXCLUDE_START_DATE <?php $start = new DateTime('2012-07-01'); $interval = new DateInterval('P7D'); $end = new DateTime('2012-07-31'); $period = new DatePeriod($start, $interval, $end, DatePeriod::EXCLUDE_START_DATE); // By iterating over the DatePeriod object, all of the // recurring dates within that period are printed. // Note that, in this case, 2012-07-01 is not printed. foreach ($period as $date) { echo $date->format('Y-m-d')." "; } ?> The above example will output: 2012-07-08 2012-07-15 2012-07-22 2012-07-29 PHP Documentation Group DATEPERIOD.__CONSTRUCT(3)
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