how to use system function in emscipten for web application

[huison-cao]

There is a system function in emscripten.
library.js:327 system: function(command) { //.....
./emsdk/upstream/emscripten/system/lib/libc/musl/src/process/system.c: 11 int system(const char *cmd)

how to call it, and how to write the command program?

[sbc100]

emscripten doesn't have any support for multiple process or any of fork, exec or spawn capability (at least not as of today). Some folks have tried to create such thing (for example: https://browsix.org/) but you can't do anything like that out of the box.