DuckCorp Dico

Found one definition

1.                 From The Free On-line Dictionary of Computing (19 January 2023):
                   
   
   
                   
                     
   RCL
      Reduced Control Language.  A simplified job control language
      for OS360, translated to IBM JCL.  "Reduced Control Language
      for Non- Professional Users", K. Appel in Command Languages,
      C. Unger ed, N-H 1973.