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Total time taken

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# 1  
Old 08-03-2012
Total time taken
Hi Friend,
Need your help.
I have a file which has information of start time and End time . I need to find how much time takes to complete the job . how can I do it in unix command .

Example of Log file :

Code:
 Start Loading                     ---Thu Aug  2 17:14:09 EDT 2012
 Load completed   successfully---Fri Aug  3 09:00:44 EDT 2012

Moderator's Comments:
Mod Comment Code tags for code, please.
Last edited by Corona688; 08-03-2012 at 01:48 PM..
# 2  
Old 08-03-2012
This may be simple on some systems and extremely difficult in others. What's your OS and shell? uname -a if you don't know.

If you have Linux, converting dates into timestamps is straightforward:

Code:
$ date +%s -d "Thu Aug  2 17:14:09 EDT 2012"

1343942049

$

...and getting the difference between two times becomes a matter of simple arithmetic.
Last edited by Corona688; 08-03-2012 at 01:54 PM..
# 3  
Old 08-07-2012
OS is AIX .
# 4  
Old 08-10-2012
We changed the code and put the following logic
Code:
START=$SECONDS
END=$SECONDS
echo elapsed time is $((END-START)) seconds

Can any one help how to convert this seconds in HH MM SS format
# 5  
Old 08-10-2012
That comes down to math.

Code:
SS=$(( (END-START) % 60 ))
MM=$(( ((END-START) / 60) % 60 ))
HH=$(( ((END-START)/(60*60))%24 ))

# 6  
Old 08-11-2012
Not sure but does AIX have the 'time' command? If so, preface your command with the time command
Code:
time <your command>

This will provide the system time, the user time and the total time.
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