Working with Processes
Linux stores details about processes in /proc/$ID/.
You can follow the output of a process by tailing the file descriptor. 0 is the standard input, 1 is the standard output and 2 is standard error.
If you want to follow along and see the STDOUT messages:
# 340978 is the PID, which you can find using 'ps -ef'
tail -f /proc/340978/fd/1