Is this the program you are using?

If so, are you sure you aren't using the "-f|-fork" option?

My guess is, you should use my $pidline = `root-tail -f ...` but for some reason, root-tail v0.0.10 has the line for printing the PID commented out... 

      pid = fork ();
      if (pid != 0)
        {
          /*printf ("forking mode: pid=%d\n", pid);*/
          exit (0);
        }

[download]
(You may want to mail the devloper and ask what gives.)

However, if you don't use -f, the code you have above seems to work just fine.

In reply to Re: Exec() and getting system PID by hossman
in thread Exec() and getting system PID by r.joseph

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