Reading console output

Does anybody have any idea about how to use console output as input in Matlab under linux? My application continuously returns a value and prints it in integer type to system console. I am seeking for ways to input these values to Matlab and plot versus time.

Answer 1

[Lorenzo Luengo]

I would try using a fifo (in a console)

   mkfifo myfifo

and then running my program from matlab using

   system('myprogram > myfifo &');

and then read program output just like a normal file:

   h = fopen('myfifo','r')
   fscanf(format,...)

in this way you can read your program while it's running, and the fifo works like a buffer, when it's empty the fscanf returns empty variables.

I hope this helps.

Answer 2

[Rick Rosson]

You can execute your console application from within the MATLAB Environment by calling the system function from either the MATLAB command line or from within a MATLAB script. The system function can execute your application and will return both a status and any results.

For more information:

   >> doc system

HTH.

Rick

[Yigit]

Thank you for the reply but it's not a constant value that console app returns, it's a stream of data and system() fails at this case. Any suggestions?