Re: gnuplot error code

[sfeam <sf...@us...>]

On Saturday, 04 February 2017 01:17:25 AM :	pl...@pi... wrote:
> 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?

Correct. There is no way to control the gnuplot exit value.