1The following explains how to demonstrate the woof.d DTrace script. 2 3This script is only useful if you have an audio device, /dev/audio. To test 4audio, you can run: 5 6 $ audioplay /usr/share/audio/samples/au/sample.au 7 8The volume can be adjusted from a few tools, including, 9 10 $ /usr/dt/bin/sdtaudiocontrol 11 12... 13 14woof.d will bark whenever a new process is created. In order to demonstrate 15it, first run the following: 16 17 # ./woof.d & 18 19You have now installed the dog (if the dog becomes a nusience, you are 20allowed to kill it). Now compare the difference between these recursive 21grep commands: 22 23 $ find /etc -type f -exec grep localhost {} \; 24 25 $ find /etc -type f -exec grep localhost {} + 26 27The first find command is the "bad way", the second is the "good way". You 28will hear for yourself why this is the case. 29