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Old 06-23-2014, 10:47 AM   #1
mrajdeep
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command to find out elapsed time of logfile since last write


Hi, I need to write a script which will continuously monitor a logfile and if nothing is written in that file for 500 miliseconds it will invoke a kill -3 signal to generate core dump. Any help or suggestion to achieve this is highly appreciated.
 
Old 06-23-2014, 10:51 AM   #2
schneidz
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Code:
[schneidz@hyper ~]$ touch mrajdeep.txt
[schneidz@hyper ~]$ stat mrajdeep.txt 
  File: `mrajdeep.txt'
  Size: 0         	Blocks: 0          IO Block: 4096   regular empty file
Device: fd00h/64768d	Inode: 186873      Links: 1
Access: (0664/-rw-rw-r--)  Uid: (  500/schneidz)   Gid: (  500/schneidz)
Context: unconfined_u:object_r:user_home_t:s0
Access: 2014-06-23 10:51:14.306979323 -0400
Modify: 2014-06-23 10:51:14.306979323 -0400
Change: 2014-06-23 10:51:14.306979323 -0400
 Birth: -
 
Old 06-23-2014, 11:29 AM   #3
mrajdeep
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Thanks for your response, but how do I determine if 500 miliseconds have passed since the file was last modified.
 
Old 06-23-2014, 11:32 AM   #4
schneidz
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maybe the awk command can help check the difference in time... maybe you could convert the yyyy-mm-dd hh:mm:ss.xxxxxxxxx into some sort of unix time ?

Last edited by schneidz; 06-23-2014 at 11:34 AM.
 
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