Using the crash(ADM) diagnostic tool
command is an advanced system diagnostic tool for
use by experienced system administrators.
It allows you to examine the memory image
of a live or crashed system.
It has a large number of internal commands that
format and display kernel control and data structures,
system tables, and other information. It will also
evaluate expressions given as arguments to these commands.
These expressions are written in a syntax similar to that
of the C programming language.