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Full Discussion: Date validity check
Top Forums Shell Programming and Scripting Date validity check Post 302873195 by mechvijays on Monday 11th of November 2013 10:26:49 AM
Old 11-11-2013
Date validity check
hi All,

i have file in which it has 2000 records like,

test.txt
====
Code:
2011-03-01
2011-03-01
2011-03-01
2011-03-01
2011-03-01
2011-03-02
2011/03/02

previously i used for loop to find the date check like below,
Code:
for i in `cat test.txt`
do
d=`echo $i | cut -c9-10| sed 's/^0*//'`;
m=`echo $i | cut -c6-7`;
Y=`echo $i | cut -c1-4`;
if cal $m $Y| tr -s " " "|" | tr -s "\n" "|" | grep $d > /dev/null 2>&1;
then 
a=1;
else 
echo "N" ; 
fi
done


but it is taking so much time when the file has 7000 records,i need a command to find the whetehr any invalid date is there in the file.if any one of the date is invalid i need to return a flag.

please help asap.
Last edited by Franklin52; 11-11-2013 at 05:57 PM.. Reason: Please use code tags
 

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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)
All times are GMT -4. The time now is 05:28 PM.
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