Hi,

I have a CSV file with data in the following format: date,rate1,rate2
e.g.

2009031905,3558,1.68
2009031906,6385,2.42
2009031907,8860,3.68
2009031908,39224,14.16

[download]
This data goes all the way back for every hour of the last 40 days however I am attempting to write a perl script to extract the previous business week's (mon-fri) data only.
I have written the following code to decrement the day using the same format however this will not account for previous days overlapping months and years etc.

Can anyone suggest a better way of doing this? I am new to perl and not familiar with how to convert the YYYYMMDDHH string into a date format so I can select a specific range. 
@months = qw(01 02 03 04 05 06 07 08 09 10 11 12);
@weekDays = qw(01 02 03 04 05 06 07);
($second, $minute, $hour, $dayOfMonth, $month, $yearOffset, $dayOfWeek
+, $dayOfYear, $daylightSavings) = localtime();
$year = 1900 + $yearOffset;
$theTime = "$year$months[$month]$dayOfMonth$hour";<br>
<br>
$theOldTime = $year. $months[$month]. ($dayOfMonth -2). 
$hour;<br>
<br>
print $theTime . "\n";<br>
print $theOldTime . "\n";<br>

[download]
Any help would be much appreciated!
Many thanks.

In reply to Extract data between certain dates using YYYYMMDDHH timestamp by chud83

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