I want to periodically monitor the CPU usage and plot in time series. Not having much knowledge, I plan to use the top command, something like this question (Monitor cpu usage (and perhaps memory using) for a single process simple as possible). However, when I issue command like "top -c -p PID", I want it to output then exit automatically without manually type q or ctrl-c. And if not using top, what other command can achieve the same function without interactivity?
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1maybe look at sysstat package for tools related to collecting system metrics. – Tom Mar 30 '23 at 18:49
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1PS can do also the job – djdomi Mar 30 '23 at 19:36
2 Answers
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If you want to monitor the things for particular process you can use command:
ps -flp <PID>
if you want to monitor overall performance of the system you can use vmstat from sysstat package:
vmstat 1 2
and get the second line (first is average from the server start)
Romeo Ninov
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From "man top", I find that using the option "-b" and "-n" can solve the issue.
user180574
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