how can i make sar command run forever ?

umen · #1 (**permalink**) 01-30-2008

Hello all
i found out about the sar command but when looking in the man pages
there is no way to make sar working for ever .. only
with some kind of interval . like sar 2 30 .
my question is can i just run sar for ever ?

pt14 · #2 (**permalink**) 01-30-2008

create a cron entry

umen · #3 (**permalink**) 01-30-2008

Please explain

pt14 · #4 (**permalink**) 01-30-2008

type crontab -e at the command prompt. vi editor opens. Make the below enrty in the editor

* * * * * sar > sarlog

save and exit editor

umen · #5 (**permalink**) 01-30-2008

well i did that , exit the vi editor
and then whet ?

sysgate · #6 (**permalink**) 01-30-2008

Code:

for ((;;)) do sar 2 30; sleep 10; done &

- this will start command 'sar 2 30' every 10 seconds, and will put it in the background.

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