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Shell Programming and Scripting

How to manipulate date?

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# 1  
Old 04-04-2005
How to manipulate date?
Hi
can u pls help me out with this as
i am relatively new to unix.

I need to use 4 different types of dates in my shell script
* first day of the last(previous) month
* last day of the last(previous) month
* first day of the current month
* (sysdate-1) yesterday's date for the current month.
in dd/mm/yyyy HH24:MI:SS format..

I need to use them in my shell script
I need to pass the above date variables to a sql script..

thnks in advance..
# 2  
Old 04-04-2005
Please see link
# 3  
Old 04-04-2005
Hi
I don't want to use a function...

thnks a lot..
# 4  
Old 04-05-2005
Why not?

Please have a look at the link encrypted posted - there are many date manipulation techniques presented there.

Also; it might be worth posting your flavour of UNIX (uname -a), and which shell you're using (echo $SHELL; echo $0) so we can deduce what will be applicable to you - for example, using a system with GNU date installed gives the option of using the flexible -d option to date.

Cheers
ZB
# 5  
Old 04-06-2005
Hi ZB,
I am using ksh...and i have checked the encrypted link...there are several functions used..which I don't want to use..

$ uname -a
SunOS crddbdevl 5.6 Generic_105181-39 sun4u sparc SUNW,Ultra-Enterprise

$ date
Wed Apr 6 03:19:46 EDT 2005

and its ksh for sure....
# 6  
Old 04-06-2005
How do you think that you are going to be able to grab the time and date and manipulate it without calling unix functions. This must be a school assignment, that is the only reason that I can see that you wouldn't want to use already written functions.
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