int main()
{
pid_t pid = fork();
if (pid < 0) {
printf("fail to fork\n");
exit(1);
} else if (pid == 0) {
if (execp("hello", NULL) < 0) {
printf("fail to exec\n");
exit(0);
}
printf("the child is not hello\n");
exit(0);
}
printf("the parent\n");
return 0;
}
/**
* Parse and executes a command. It may be a program or a script.
*
* @param a command line string
* @param return code from program
*/
int parse_and_execp(const std::string& cmdline)
{
std::vector<char*> arg = parse(cmdline);
return execp(arg);
}
