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Full Discussion: How to calculate time difference between start and end time of a process!
Top Forums Shell Programming and Scripting How to calculate time difference between start and end time of a process! Post 302450401 by frans on Thursday 2nd of September 2010 01:05:47 PM
Old 09-02-2010
With GNU date
Code:
#!/bin/bash
StartDate="08/05/10 12:55"
EndDate="08/09/10 06:50"
HRS=$((($(date -d "$EndDate" +%s)-$(date -d "$StartDate" +%s))/3600))
WHRS=$HRS
for (( D=1; D<$((HRS/24+1)); D++ ))
do
   [ $(date -d "$StartDate $D days" +%u) -ge 6 ] && ((WHRS-=24))
done
echo "Working time elapsed='$WHRS'"

As a function
Code:
#!/bin/bash
Elapsed()	{
   HRS=$((($(date -d "$2" +%s)-$(date -d "$1" +%s))/3600))
   WHRS=$HRS
   for (( D=1; D<$((HRS/24+1)); D++ ))
   do
      [ $(date -d "$1 $D days" +%u) -ge 6 ] && ((WHRS-=24))
   done
   echo $WHRS
}
StartDate="08/05/10 12:55"
EndDate="08/09/10 06:50"
echo "Working time elapsed='$(Elapsed "$StartDate" "$EndDate")'"

 

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LEARN ABOUT PHP

date_parse_from_format

DATE_PARSE_FROM_FORMAT(3)						 1						 DATE_PARSE_FROM_FORMAT(3)

date_parse_from_format - Get info about given date formatted according to the specified format

SYNOPSIS

       array date_parse_from_format (string  $format, string  $date)

DESCRIPTION

	Returns associative array with detailed info about given date.

PARAMETERS

	      o $format
		- Format accepted by DateTime.createFromFormat(3).

	      o $date
		- String representing the date.

RETURN VALUES

	Returns associative array with detailed info about given date.

EXAMPLES

       Example #1

	      date_parse_from_format(3) example

	      <?php
	      $date = "6.1.2009 13:00+01:00";
	      print_r(date_parse_from_format("j.n.Y H:iP", $date));
	      ?>

	      The above example will output:

	      Array
	      (
		  [year] => 2009
		  [month] => 1
		  [day] => 6
		  [hour] => 13
		  [minute] => 0
		  [second] => 0
		  [fraction] =>
		  [warning_count] => 0
		  [warnings] => Array
		      (
		      )

		  [error_count] => 0
		  [errors] => Array
		      (
		      )

		  [is_localtime] => 1
		  [zone_type] => 1
		  [zone] => -60
		  [is_dst] =>
	      )

SEE ALSO

       DateTime.createFromFormat(3), checkdate(3).

PHP Documentation Group 												 DATE_PARSE_FROM_FORMAT(3)
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