SUN OS:DTrace Utility

DTrace,a very intresting concept or you can say that utility avilable in SUN Solraris.
As a software developer you always trace your programme for finding bugs.
Similar thing but in differnt way you can tarce your files,command in SUN OS.
That is called D-Trace.In this type your command and also give DTrace to it,you can see
that how your commmand works.

Technically speaking

DTrace is a comprehensive dynamic tracing framework for the Solaris Operating Environment.
DTrace provides a powerful infrastructure to permit administrators, developers,
and service personnel to concisely answer arbitrary questions about the behavior
of the operating system and user programs.