[rrd-users] problem with update function

[Simon Hobson]

David Thamm wrote:

>I have a problem with rrdtool update. I have update in my c-program. If
>I start the c-program on my self then write update my data in rrd.
>When I start my c-program with crontab, than do update no write in rrd.
>My rrd have the topical time-data but no modem-data.


You probably need to look at the environment differences. When you 
are logged in as a user you will have a different environment 
(including a typically larger PATH setting) to that available when 
running from a cron job.