Info Catalog org: post org: Specific header arguments org: epilogue

org: prologue

 
 14.8.2.26 ‘:prologue’
 .....................
 
 The value of the ‘prologue’ header argument will be prepended to the
 code block body before execution.  For example, ‘:prologue "reset"’ may
 be used to reset a gnuplot session before execution of a particular code
 block, or the following configuration may be used to do this for all
 gnuplot code blocks.  Also see epilogue.
 
      (add-to-list 'org-babel-default-header-args:gnuplot
                   '((:prologue . "reset")))
 

Info Catalog org: post org: Specific header arguments org: epilogue