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Add minutes in Datetime Variable in Unix

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# 1  
Old 10-21-2009
Add minutes in Datetime Variable in Unix
Hi,

New to scripting.
I have datetime as a String and I need to add some hours/minutes in to that.

21/10/2009 23:00:00

After adding 180 minutes; it will look like this

22/10/2009 02:00:00

Regards,
Vikas Mahajan
# 2  
Old 10-21-2009
Quote:
Originally Posted by vikas482
Hi,

New to scripting.
I have datetime as a String and I need to add some hours/minutes in to that.

21/10/2009 23:00:00

After adding 180 minutes; it will look like this

22/10/2009 02:00:00

Regards,
Vikas Mahajan
convert to epoch time, add hours/minutes, convert back.
Search forums for the 'epoch' time conversion threads.
# 3  
Old 10-21-2009
1. In perl scripting it is very simple as you have lot of modules in CPAN such as Date::Manip, Date::Calc and so on.

2. In shell, if your date supports and you are looking for 3 hours after from the current time then, this will help you...


Code:
$ date
Wed Oct 21 22:11:57 IST 2009
$ date --date='3 hours'
Thu Oct 22 01:11:59 IST 2009

# 4  
Old 10-21-2009
Quote:
Originally Posted by thegeek
1. In perl scripting it is very simple as you have lot of modules in CPAN such as Date::Manip, Date::Calc and so on.

2. In shell, if your date supports and you are looking for 3 hours after from the current time then, this will help you...


Code:
$ date
Wed Oct 21 22:11:57 IST 2009
$ date --date='3 hours'
Thu Oct 22 01:11:59 IST 2009

Instead of fetching the current date time, I need to add the reqd. minutes in some variable datetime which i m gtng 4m somewhere else.

The code mentioned above will add the minutes inthe current system date.

Also i need todo this in HPUX Server.

---------- Post updated at 12:38 PM ---------- Previous update was at 11:54 AM ----------

Hi

Can any one provide me the script for the query raised by me.

I am trying for the same from last 6 to 7 hous.


Thanks & Regards
Vikas Mahajan
# 5  
Old 10-21-2009
What about the other suggestion ?

Converting the time to epoch, and adding the required time, and reconverting epoch to DATE & Time ?!
# 6  
Old 10-22-2009
Code:
#!/bin/ksh
epoch_seconds=$(perl -e 'use Time::Local; print timelocal(0,25,1,21,10,2009), "\n";')
echo $epoch_seconds
RESULT=`expr $epoch_seconds + 12600`
echo $RESULT
perl -e 'print scalar(localtime($RESULT)), "\n"'


Thu Jan  1 05:30:00 1970

***********why it is giving me wrong date.*******************

---------- Post updated at 11:30 PM ---------- Previous update was at 11:14 PM ----------


Code:
$ #!/bin/ksh
$ epoch_seconds=$(perl -e 'use Time::Local; print timelocal(0,25,1,21,10,2009), "\n";')
$ echo $epoch_seconds
1258746900
$ RESULT=`expr $epoch_seconds + 12600`
$ echo $RESULT
1258759500
$ perl -e 'print scalar(localtime('$RESULT')), "\n"'

Sat Nov 21 04:55:00 2009

******************************************

I got the result

But i need this in the format mentioned below . Could ny 1 help

21/11/2009 04:55:00

---------- Post updated 10-22-09 at 12:00 AM ---------- Previous update was 10-21-09 at 11:30 PM ----------
Quote:
Originally Posted by vgersh99
convert to epoch time, add hours/minutes, convert back.
Search forums for the 'epoch' time conversion threads.
Code:
 
$ #!/bin/ksh
$ epoch_seconds=$(perl -e 'use Time::Local; print timelocal(0,25,1,21,10,2009), "\n";')
$ echo $epoch_seconds
1258746900
$ RESULT=`expr $epoch_seconds + 12600`
$ echo $RESULT
1258759500
$ perl -e 'print scalar(localtime('$RESULT')), "\n"'

Sat Nov 21 04:55:00 2009

******************************************

I got the result

But i need this in the format mentioned below . Could ny 1 help

21/11/2009 04:55:00
Image
Last edited by zaxxon; 10-22-2009 at 02:03 AM.. Reason: code tags
# 7  
Old 10-22-2009
To keep the forums high quality for all users, please take the time to format your posts correctly.

First of all, use Code Tags when you post any code or data samples so others can easily read your code. You can easily do this by highlighting your code and then clicking on the # in the editing menu. (You can also type code tags [code] and [/code] by hand.)

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Thank You.

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