> 
> okay I hope somebody here can help me with this.
> 
> I have two scripts which get called from mrtg.conf, the first monitors incoming/outgoing mail and the second monitors sessions on a oracle db, their output is :
> 
> [root@dent mrtg]# ./mail-stats.sh 
> 162
> 933
> 
> [root@dent mrtg]# 

Perhaps you copied it wrong, but scripts should return 4 lines, not 3.

> they are both called in the same manner:
> 
> Target[mail]: `/home/httpd/html/mrtg/mail-stats.sh`
> 
> but nothing seems to get logged in either the graphs or the log files.  For everything else (snmp) mrtg is working fine.
> 
You mean: zero's are logged ?
If *nothing* changes, mrtg is not run and you need to look elsewhere (cron).

If zero's are logged this could be:
- an error (see above) in the output format
- not reading a counter but rather some gauge value, and forgetting
  to use option gauge
- Different path settings inside cron and on the command line.

The last one needs more explanation.
Suppose your script needs other scripts or programs. Those programs
are called as-is, without a path part. If your command line shell looks
in for instance /usr/bin, and your cron shell does not, you loose.

Check this by calling the script itself from cron, not from mrtg inside
cron, and see if it works.

Regards,
Alex

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