gnuplot error code

[<pl...@pi...>]

Hi,

I am calling gnuplot as a child process and need to conditionally return 
a non zero error code in some circumstances. From a quick search it 
seems that this is not possible, It always returns zero: yet that seems 
a little surprising.

perl -e 'system("gnuplot -e \"exit 1;\""); print "$?\n"'

The only way I can get a non zero result is if there is a parsing error 
in the gnuplot commands.

I am using gnuplot to display real time data on a server and it would be 
good to be able to do some basic error trapping, not least for 
debugging. Is there a way to do this?

Thanks, Peter.