Perhaps there is another way of looking at. How does the program 'sensors' know what <busnumber>-<busaddress> combination to use? Maybe this could be used to rewrite the script sens_update_rrd to automatically find and read the right sensor data? Alternatively, maybe sens_update_rrd should be rewritten to call 'sensors' and parse the resulting output rather than querying directly the /sys/bus/i2c/devices/<busnumber>-<busaddress> sensor values? Or maybe I should just be using sensord instead which would avoid having to specify the sensor or to edit the /etc/crontab file? (however, I like the other cgi scripts better) I guess in summary it seems to me that the primary problem is that the crontab script sens_update_rrd is written in a non-robust fashion...
