The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
D programs describe the probes that are to be enabled together with the predicates and actions that are bound to the probes. D programs can also declare variables and define new types. This section provides an introduction to the important features that you are likely to encounter in simple D programs.