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Top Forums Shell Programming and Scripting need to remove duplicates based on key in first column and pattern in last column Post 302450126 by agama on Wednesday 1st of September 2010 06:13:35 PM
Old 09-01-2010
Quote:
Originally Posted by script_op2a
Is there a reason to have a[4]a[5] , why not just use a[4] and then awk doesn't even have to remove anything?
Using both allows the timestamp to be used in determining the most recent entry which would be necessary should two entries have the same date.
 

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DATETIMEIMMUTABLE.GETTIMESTAMP(3)					 1					 DATETIMEIMMUTABLE.GETTIMESTAMP(3)

DateTime::getTimestamp - Gets the Unix timestamp

       Object oriented style

SYNOPSIS
public int DateTime::getTimestamp (void ) DESCRIPTION
int DateTimeImmutable::getTimestamp (void ) int DateTimeInterface::getTimestamp (void ) Procedural style int date_timestamp_get (DateTimeInterface $object) Gets the Unix timestamp. PARAMETERS
This function has no parameters. RETURN VALUES
Returns the Unix timestamp representing the date. EXAMPLES
Example #1 DateTimeImmutable.getTimestamp(3) example Object oriented style <?php $date = new DateTime(); echo $date->getTimestamp(); ?> Procedural style <?php $date = date_create(); echo date_timestamp_get($date); ?> The above examples will output something similar to: 1272509157 NOTES
Using U as the parameter to DateTime.format(3) is an alternative when using PHP 5.2. SEE ALSO
DateTime.setTimestamp(3), DateTime.format(3). PHP Documentation Group DATETIMEIMMUTABLE.GETTIMESTAMP(3)
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