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Need to substract date with current date and time

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Top Forums Shell Programming and Scripting Need to substract date with current date and time
# 1  
Old 10-12-2013
Network Need to substract date with current date and time
I have below file which contain the date in column 3,4,5

Code:
12345 open 10/10/13 10:08 PM  3 application is in java          
67899 open 12/10/13 2:31 AM   2 apps can be reach               
23456 open 11/9/13 2:31 AM    4 java is OK                      
65432 open 12/10/13 10:07 PM  9 we are running below threshold  
34568 open 11/10/13 5:42 AM   8 unix shell scripts is OK        
45678 open 09/10/13 9:07 PM   7 web logic is running

we need to subtract date and time(which are in column 3,4, 5) with current date and time.. need to write difference in one column

suppose current date is "12/10/13 12:00 PM" ..then the output file should be like below

if the difference is less then a 1 day output column should say difference in hours
if the difference more then 24 hours output column should say difference in days
if the difference more then 30 days output column should say difference in month


Code:
12345 open 10/10/13 10:08 PM  3 application is in java                2 day        
67899 open 12/10/13 2:31 AM   2 apps can be reach                     7 hours 
23456 open 11/9/13 2:31 AM    4 java is OK                            1 month 
65432 open 12/10/13 10:07 PM  9 we are running below threshold        1 hour  
34568 open 11/10/13 5:42 AM   8 unix shell scripts is OK              1 day
45678 open 09/10/13 9:07 PM   7 web logic is running                  3 days

please provide me the code in shell ..i need your help..plz
Last edited by vijay_rajni; 10-12-2013 at 09:21 AM.. Reason: icode tags -> code tags
# 2  
Old 10-12-2013
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