.. -*- coding: utf-8; -*-.. include:: HEADER.rst======================== Debugging in Mac OS X.========================.. contents::dtruss.======= $ dtruss df -h # run and examine the "df -h" command $ dtruss -p 1871 # examine PID 1871 $ dtruss -n tar # examine all processes called "tar"dtrace.=======:: $ man -k dtrace $ dapptraceSee: http://en.wikipedia.org/wiki/Dtrace Wikipedia home page.ktrace.=======Log files generated by ``ktrace`` are viewable in human-readable form using``kdump``.Since Mac OS X 10.5 Leopard, ktrace has been replaced by dtrace. http://en.wikipedia.org/wiki/Ktrace Wikipedia home page.