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Old 05-24-2007, 05:36 AM   #1
3ttt
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Registered: May 2007
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Question Performance Monitoring Script


Hi everybody,

I would like to keep a log file which merges "iostat" and "netstat -i", let say for every 1 minute in one row. Are there any scripts or better tools I can take?

Thanks a lot.

3ts
 
Old 05-24-2007, 06:23 AM   #2
mechdave
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Registered: Apr 2007
Location: Adelaide, Australia
Distribution: Ubuntu 8.10 and 7.10 server
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Post

Try:
Code:
#!/bin/bash
logfile="/path/to/log/file"
while true; do
    iostat >> $logfile
    netstat -i >> $logfile
    sleep 60
done
 
Old 05-24-2007, 07:57 AM   #3
3ttt
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Hi mechdave, thanks a lot!

How can I do if I want to get out of this while loop when I finish another command, e.g. "cp -r $sourcefile $storage"?


#!/bin/bash
logfile="/path/to/log/file"
sourcefile="/path/copy/source"
storage="/media/USBDISK"

cp -r $sourcefile $storage

while true; do
iostat >> $logfile
netstat -i >> $logfile
sleep 60
done

I try this but it doesn't work!!!
 
Old 05-25-2007, 05:31 AM   #4
chrism01
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If you're trying to collect stats on the cp cmd, you can do it as 2 diff progs.
1st, start the gatherer prog (iostat etc) in the background eg
nohup ./gatherer.sh &
then run the cp script, then kill the gatherer (which will have shown it's pid when you started it).
Alternatively, you can embed the gatherer script invocation at the top of the cp script and use the $! var to get it's pid; see http://tldp.org/LDP/abs/html/x8280.html
 
Old 05-26-2007, 03:15 AM   #5
3ttt
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Registered: May 2007
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Thanks a lot Chris! I have got it :-D
Thanks mechdave for the idea :-)
 
  


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