Hello! We are experiencing some re-direct issues with the system call. Hard thing is, the behavior is not determinate. We run a script thus: 
/usr/bin/nohup ./do-upgrades.pl > do-upgrades.log &

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Then inside the script we fork off, and use system() to spawn another child process like this: 
      if(defined ($f) and $f==0) { # I'm a child
        my $result = system("./upgrade.pl $sensor >> worklog 2>&1");
        print "result from upgrade script for $sensor was $result.\n";
        exit(0);
      }

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We then waitpid inside the forked process until upgrade.pl exits. Been stable for years. But, as we have drilled down into the logs, we have found that in some cases the upgrade.pl child process starts out writing to its parent process log (do-upgrades.log), and in other instances it writes to worklog correctly as directed. Anyone have ideas how this is happening? THANKS!

In reply to system() call mis-directs? by Clarkman

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