ksh compare dates INSIDE a file (ie date A is

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Top Forums Shell Programming and Scripting ksh compare dates INSIDE a file (ie date A is > date B) Post 302561849 by right_coaster on Wednesday 5th of October 2011 11:16:02 AM

10-05-2011

Registered User

ksh compare dates INSIDE a file (ie date A is > date B)

In KSH, I am pasting 2 almost identical files together and each one has a date and time on each line. I need to determine if the first instance of the date/time is greater than the 2nd instance of the date/time. If the first instance is greater, I just need to echo that line.

I thought I would need to change the dates/times to epoch seconds but I can't figure out how to do update every date/time in the files to epoch. I'm not even sure if this would be the best way. Below is a snip from the joined files:

Code:

 
AO          | SYS.IO.LIB    | 2011-09-20 11:35:15     AO          | SYS.IO.LIB    | 2011-09-20 11:35:15
AR          | SYS.IO.LIB    | 2011-09-21 12:02:16     AR          | SYS.IO.LIB    | 2011-09-21 12:02:16
AT          | SYS.IO.LIB    | 2011-09-24 17:30:17     AT          | SYS.IO.LIB    | 2011-09-22 19:30:17
AW          | SYS.IO.LIB    | 2011-09-22 11:14:19     AW          | SYS.IO.LIB    | 2011-09-20 11:35:19
AZ          | SYS.IO.LIB    | 2011-09-20 11:35:20     AZ          | SYS.IO.LIB    | 2011-09-20 11:35:20
BB          | SYS.IO.LIB    | 2011-09-20 11:35:24     BB          | SYS.IO.LIB    | 2011-09-20 11:35:24
BC          | SYS.IO.LIB    | 2011-09-28 05:58:26     BC          | SYS.IO.LIB    | 2011-09-20 11:35:26
BI          | SYS.IO.LIB    | 2011-09-30 21:20:27     BI          | SYS.IO.LIB    | 2011-09-20 11:35:27
BR          | SYS.IO.LIB    | 2011-09-11 02:10:29     BR          | SYS.IO.LIB    | 2011-09-20 11:35:29
BS          | SYS.IO.LIB    | 2011-09-20 11:35:30     BS          | SYS.IO.LIB    | 2011-09-20 11:35:30
CB          | SYS.IO.LIB    | 2011-09-13 10:48:32     CB          | SYS.IO.LIB    | 2011-09-20 11:35:32
CD          | SYS.IO.LIB    | 2011-09-20 11:35:36     CD          | SYS.IO.LIB    | 2011-09-20 11:35:36
CD080ID9    | SYS.IO.LIB    | 2011-09-01 23:00:38     CD080ID9    | SYS.IO.LIB    | 2011-09-20 11:35:38
CD082ID9    | SYS.IO.LIB    | 2011-09-20 11:35:40     CD082ID9    | SYS.IO.LIB    | 2011-09-20 11:35:40
CG          | SYS.IO.LIB    | 2011-09-20 11:35:44     CG          | SYS.IO.LIB    | 2011-09-20 11:35:44
CI          | SYS.IO.LIB    | 2011-09-20 11:35:45     CI          | SYS.IO.LIB    | 2011-09-20 11:35:45

Any assistance is greatly appreciated.

right_coaster

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LEARN ABOUT DEBIAN

netsds::util::datetime

NetSDS::Util::DateTime(3pm)				User Contributed Perl Documentation			       NetSDS::Util::DateTime(3pm)

NAME

       NetSDS::Util::DateTime - common date/time processing routines

SYNOPSIS

	       use NetSDS::Util::DateTime;

	       print "Current date: " . date_now();

DESCRIPTION

       This package provides set of routines for date and time processing.

EXPORTED FUNCTIONS

       date_now_array([TIME])
	   Returns array of date items for given date.	If source date is not set current date used.

       date_now([TIME])
	   Return [given] date as string.

	       2001-12-23 14:39:53

       date_now_iso8601([TIME])
	   Return date as ISO 8601 string.

	       20011223T14:39:53Z

	   <http://en.wikipedia.org/wiki/ISO_8601> http://www.w3.org/TR/NOTE-datetime <http://www.w3.org/TR/NOTE-datetime>

       date_strip(DATE)
	   Trim miliseconds from date.

       date_date(DATE)
	   Trim time part from date.

       date_time(DATE)
	   Trim date part from date.

       time_from_string($string)
	   Return parsed date/time structure.

       date_from_string($string)
	   Return date from string representation.

       date_inc([INCREMENT, [TIME]])
	   Return date incremented with given number of seconds.

       date_inc_string([INCREMENT, [TIME]])
	   Return string representation of date incremented with given number of seconds.

EXAMPLES

       None yet

BUGS

       Unknown yet

SEE ALSO

       Date::Parse, Date::Format

TODO

       Import stuff from Wono project

AUTHOR

       Valentyn Solomko <val@pere.org.ua>

       Michael Bochkaryov <misha@rattler.kiev.ua>

perl v5.12.4							    2011-08-27					       NetSDS::Util::DateTime(3pm)