2008/4/28 Jelena Savic <[EMAIL PROTECTED]>:
> >> Is there a way that i can notify my process when snmpd is
> >> ready without arbitrarily sleeping for some time before
> >> starting up the second process?
>
> >$ snmpgetnext [valid creds] -t 10 -r 60 .1.3
> >
> > ...will wait up to ten minutes for a valid response, retrying every
> ten seconds.
> > Check the return code - 0 means the agent is up, anything else means
> abort.
> How do i check the return code of snmpgetnext?
Either
snmpgetnext .... > /dev/null 2>&1 && echo Server is up
or
if snmpgetnext .... > /dev/null 2>&1
then
echo Server is up
fi
(They both work in effectively the same manner, but the second format
makes it simpler to run multiple commands).
The "> /dev/null 2>&1" is simply to throw away any output,
assuming that you're *just* interested in the success/failure of the request.
Dave
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