1The following is a demonstration of the rwbbypid.d script, 2 3 4Here we run it for a few seconds then hit Ctrl-C, 5 6 # rwbbypid.d 7 Tracing... Hit Ctrl-C to end. 8 ^C 9 PID CMD DIR BYTES 10 20347 bash R 22 11 11053 dtrace W 32 12 1532 Xorg W 64 13 20317 sshd R 86 14 20347 bash W 87 15 20317 sshd W 137 16 1659 mozilla-bin R 213 17 20334 sshd R 1232 18 20334 sshd W 1282 19 11054 cp W 18652 20 11054 cp R 18652 21 1532 Xorg R 51112 22 1659 mozilla-bin W 51261 23 24In the above output, we can see that mozilla-bin with PID 1659 has written 2551261 bytes, while Xorg has read 51112 bytes. 26 27