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Old 09-12-2008, 03:42 AM   #1
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Registered: Sep 2008
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How to get Process start time ???

Hi All,

I have a started a process say X. I can see its starting time through ps -ef | grep X
at the same time a directory is created in /proc with the process ID of X. after some days i gain check my process. it will show only the date and not the time. now my question is is there any log file maintined by the kernal where i can get the start time of the process.
There must be a log file in the system but i am not able to find the exact location. i have searched in /proc/{pid}/stat, but i am not able to get it.
Can u help me in finding the exact location where the log file is created.

Old 09-13-2008, 12:28 PM   #2
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Registered: Jan 2005
Location: Canada
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if you know the process id and you know that a folder is created when the process starts in /proc/{pid}/ then why not simply check the creation time of the folder using 'properties' in gui or 'ls -dl /proc/{pid}' in command line?

edit: after a quick read of 'man ps', you can get this information in a number of ways, ie: "ps -p {pid} -o lstart" will print the date and time the process started. see the man page for other ways (ie replace 'lstart' with 'bsdstart' or 'etime' to get different formats). there is also a switch to remove the output header, so that if your using this in a script you dont need to do any parsing.

Last edited by nadroj; 09-13-2008 at 01:09 PM.


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