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Variable initialization

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# 1  
Old 06-23-2014
Variable initialization
Hallo Team,

I have a simple request and i would appreciate your help.
I would like to use two dates in my script lets:

A=$(date +"%d %B %Y")
echo $A
23 June 2014

That's awesome now we cooking. Now i want B to be on the previous month
eg: echo $B Should give me
23 May 2014

I would like to use these two arguments in my script below:

Code:
../getUsageDetailsFromMind_Where.pl "where accountid in (select id from accounts where parent = 77) and calldate between '20 MAY 2014' and '19 JUN 2014' and destination  in (select  distinct accountani from asani where (accountani between '0124264000' and '0124264611'))" MHG_Bitts_Only_Billing_201406 Y Y N;

../getUsageDetailsFromMind_Where.pl "where accountid in (select id from accounts where parent = 77) and calldate between '20 MAY 2014' and '19 JUN 2014' and destination  in (select  distinct accountani from asani where (accountani between '0116712000' and '0116712999'))" MHG_MedScheme_Only_Billing_201406_1 Y Y N;



My question is how do i set B as a variable to give me the desired output?

Regards,
Last edited by kekanap; 06-23-2014 at 12:24 PM..
# 2  
Old 06-23-2014
What's your system? On Linux you can do things like
Code:
date -d "2014/01/01 - 1 month"

to get the last month.

If you don't, it may take thing like this to get handy date math.
# 3  
Old 06-23-2014
Thank you Corona,

I am using Redhat Linux and your suggestion works but how do I initialize variable B?
# 4  
Old 06-23-2014
Hi You can get like "23 5 2014" using below script
Code:
echo $(date +"%d") `expr $(date +"%m") - 1` $(date +"%Y")

..not able to print word "May" though..working on it
# 5  
Old 06-23-2014
Ugh, that is not how you do it...

Have you read the link I linked? Have you read the example I showed you? They show you how.
This User Gave Thanks to Corona688 For This Post:
Makarand Dodmis
# 6  
Old 06-23-2014
Hallo Corona,

I saw the your link its awesome but its not giving me my format.

Makarand awesome feedfack only if i can get :

Code:
23052014 not 2352014

that would be great.
# 7  
Old 06-23-2014
Moderator's Comments:
Mod Comment Posting "Does not work" without explanation does not help you or anyone. If a command does not work for you, please show the exact circumstances you used it, and the exact error or malfunction you received. Do not paraphrase errors, or post the text as links, images, or attachments if you can avoid it: Paste the exact message, in code tags, like [code] text [/code] or by selecting the text and using the Image button.

Thank you.

The UNIX and Linux Forums


In what way does it "not work"? date supports your format:

Code:
$ date.pl +"%d %B %Y"

23 June 2014

$

What did you do? In what way did it "not work"?

Try getting the date in YYYY/MM/DD format, then using GNU date or the Perl script to convert it into the format you like in both -d "DDDD/MM/YY" and -d "DDDD/MM/YY - 1 month".
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