Matlab system stdin pipe

December 11, 2024

Matlab or GNU Octave can call programs and handle arbitrarily large and complex inputs and outputs via stdin, stderr, and stdout command line pipes as in matlab-stdlib subprocess_run that works for Matlab or GNU Octave across operating systems.

stdlib.subprocess_run() overcomes limitations of factory system. and works like Python subprocess. “stdout” and “stderr” are returned from stdlib.subprocess_run() separately, and “stdin” can be passed as a string.

stdlib.subprocess_run() can be faster than using temporary files. stdlib.subprocess_run() helps avoid filesystem clashes when running many external processes in parallel or asynchronously.

Across programming languages, calling an external program with pipes avoids the need to write additional code directly interfacing memory between Fortran or C/C++ by using file-based or pipe-based API for data streaming.

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Reference: Python or Java pass stdin from Matlab to executable.