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Top Forums Shell Programming and Scripting File Timestamp and date comparsion Post 302661549 by onesuri on Monday 25th of June 2012 11:14:50 AM
Old 06-25-2012
File Timestamp and date comparsion

Hi,

I have many files in the source directory but I need to process with the latest timestamp file.
I am using linux operating system. i want extract the file created timestamp( Ext_File_create_date=)
With this format YYYYMMDD-
i have searched the relevent command in the unix forms but did not find relevent information.


Example:
Jun 23 10:10 new_file22062012101010.txt
Jun 24 11:15 new_file23062012111010.txt
Jun 25 09:10 new_file24062012111590.txt #latest file

Code:
################################################--
# Get the today date with YYYYMMDD format.
################################################--
Today_date=`date +Y%m%d`

################################################--
# Extract file created date with format YYYYMMDD
################################################--
Ext_File_create_date=                 #get the file created timestamp YYYYMMDD
################################################--
# Date comparision
################################################--


if [ "$Today_date" = "$Ext_File_create_date  ]
then
echo "today file arrived"
elce 
echo 'today file not arrrived"
fi

Thanks
Suri
 

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GMDATE(3)								 1								 GMDATE(3)

gmdate - Format a GMT/UTC date/time

SYNOPSIS
string gmdate (string $format, [int $timestamp = time()]) DESCRIPTION
Identical to the date(3) function except that the time returned is Greenwich Mean Time (GMT). PARAMETERS
o $format - The format of the outputted date string. See the formatting options for the date(3) function. o $timestamp - The optional $timestamp parameter is an integer Unix timestamp that defaults to the current local time if a $timestamp is not given. In other words, it defaults to the value of time(3). RETURN VALUES
Returns a formatted date string. If a non-numeric value is used for $timestamp, FALSE is returned and an E_WARNING level error is emitted. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.1.0 | | | | | | | The valid range of a timestamp is typically from | | | Fri, 13 Dec 1901 20:45:54 GMT to Tue, 19 Jan 2038 | | | 03:14:07 GMT. (These are the dates that corre- | | | spond to the minimum and maximum values for a | | | 32-bit signed integer). However, before PHP 5.1.0 | | | this range was limited from 01-01-1970 to | | | 19-01-2038 on some systems (e.g. Windows). | | | | | 5.1.1 | | | | | | | There are useful constants of standard date/time | | | formats that can be used to specify the $format | | | parameter. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 gmdate(3) example When run in Finland (GMT +0200), the first line below prints "Jan 01 1998 00:00:00", while the second prints "Dec 31 1997 22:00:00". <?php echo date("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998)); echo gmdate("M d Y H:i:s", mktime(0, 0, 0, 1, 1, 1998)); ?> SEE ALSO
date(3), mktime(3), gmmktime(3), strftime(3). PHP Documentation Group GMDATE(3)
All times are GMT -4. The time now is 01:14 AM.
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