Re: how to do trapz on a data file

[Carlo de Falco]

On 18 Oct 2009, at 13:32, Nunzio Losacco wrote:

> Thank you all for your help,
>
>
> now I have to find a way to make a simple command to do it all  
> passing filename.txt as argument.
> Even better if I can program it to scan some folders and do it on  
> filename.txt on those folders.
> Is it possible to make a command which can be run from the shell or  
> even better from gnuplot shell? (sorry if that's a bit OT)
>
> NL

To make an octave script executable as a shell command just add the  
shebang line:

#!/path/to/octave/binary

on the first line.
I think you can run any shell command from the gnuplot prompt by  
escaping the command name with a "!" sign.
c.