fork multiple child processes

fork multiple child processes

I want from parent program (called daemon) to start 5 child processes of
test program with args(all 5 in parallel, not to wait to finish).
I have the following code:
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc,char* argv[]){
//missing irrelevant part where argum is set
int status,i;
char cmd[512];
pid_t process_id = 0;
for (i=0; i<=5;i++)
{
process_id = fork();
if (process_id < 0)
{
printf("fork failed - %d!\n",i);
continue;
}
else if(process_id > 0) {
printf("process_id of child process %d \n", process_id);
}
else
{
sprintf(cmd,"./test %s",argum);
status = system(cmd);
exit(0);
}
}
return 0;
}
it starts them but when I run ps -aux to see the processes, besides the
good ones (like: ./test [args]) there are some duplicates like: sh -c
./test [args]
How can I get rid of those starting with "sh -c" ?