const std = #import("std");
const main = fn() s32{
    if (std.os.duplicate_process()) |pid| {
        if (pid == 0) {
            std.print(bytes = "Hello from child\n");
            const argv = [_:null] ?[&:0]const u8{"/usr/bin/ls"};
            const env = [_:null] ?[&:null]const u8 {};
            std.os.execute(path = "/usr/bin/ls", argv = argv.&, env = env.&);
            return 1;
        } else {
            std.print(bytes = "Hello from parent\n");
            return 0;
        }
    } else {
        std.print(bytes = "Unable to create child process\n");
        return 1;
    }
}