使用Golang启动正在运行的程序的另一个实例的好方法是什么？

Question

I would like a Go program to start multiple processes which it will interact with. (I'm also undecided on what method of IPC to use, but perhaps that's another question)

On thing I've thought of is using os.Executable() to get the location of the running executable, and then the exec package to run a new instance of the program. I wonder if there's another way to do this without needing to query the path of the executable, or if this is even a behaviour I should worry about.

Answer 1

Using os.Executable is the recommended way to find your program's own path in recent version of Go (see this older SO answer for details). And then you can use exec.Command to run more instances of it.

It's rather unusual though, so I wonder what use case you had in mind here. Orchestrating multiple processes is tricky and needs to solve a real issue for you to be worth it, in my experience.