Thread: Running linux system commands

Hi,

I'm trying to create a c program that when run opens a ssh tunnel to a computer, executes a few commands on that computer and closes the tunnel again.

But I have no idea how to do this. I have tried to use "system()" to run linux commands but it stuffs up as I need to type in a password for my user.

Is there some good and reasonably easy way to do this?

Regards
Mattias

Although the system() function is available in the UNIX systems, it is better to use fork()-execve() to run a command.

You should have something like this

Code:

int main()
{
...
pid_t pid;
...
pid=fork();
if (pid == 0)
{
  /* here is the child*/
  execve(your command comes here);
}
...
/* wait the child process to exit */
wait();
...
 return 0;
}