Can anyone help me get awk or, perl parser for simulations?

In the ns2 world, you can not get anything ready-made most of the times.
All the freely available scrips can be used if you are understanding them.
They will need little modifications to work with your trace files.

As far as a ns2 project is concerned, the trace analysis is the most important part of the project. In other words, it will be the “project” if it is an evaluation type of project.

so doing the project is nothing but learning the trace formats and writing customized scripts for trace analysis.

The following are the some general guidelines of viewing a script which is used for trace analysis :

Are we doing a trace analysis on wired trace or wireless trace format (or any other special non standard format)?

What kind of application event we are interested in and measuring (application layer, transport layer, network layer, mac layer etc.,) ?

What kind of graph we are going to prepare and how (like line chart, bar chart etc.,)?