Programming

#include <iostream>
#include <string>
using namespace std;

int main ()
{

char cmd[50]={0x00};
sprintf(cmd,"nohup ./%s &","exename");
system(cmd);
return 0;
}

You mean: system (command);
You probably want to return EXIT_SUCCESS (#include <stdlib.h>), not 1. The normal exit status for successful programs in unix is 0. Non-zero values are usually used to indicate some kind of failure.

Two years old thread? Let's add a subquestion, which makes the thread more complete:

In shell and some scripting languages executables can be launched non-blocking using a "&" parameter.

The exec family of commands don't provide such a "background" launch, nor does the system() function provide this - according to my information.

The alternative (popen) would do, but upon pclose, it waits for actual termination of the piped process.

Any other way to do this?