Export files & their embedded DDL

Does anybody have a script ot read an export file and pull out all the

    o Create <type> commands
    o Alter <type> commands
    o Grant commands

What I want to do is to export a table and parse the export file to get all the DDL relating to the creation of an object.

-- 
 _--_|\  John Verhoeven           Unix / Database Administrator Westrail
/      \              johnv_at_DIALix.oz.au / jverhoeven_at_westrail.wa.gov.au
*_.--._/
      v   "Smile! things could be worse... So I did... and they were..."