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Text File  |  1988-06-21  |  426 b   |  21 lines
  1. %====================== envsymbol/2           ===============================
  2. C:\PROLOG >set bgi_path=c:\prolog\bgi
  3.  
  4. C:\PROLOG >set
  5. COMSPEC=C:\COMMAND.COM
  6. PROSYS=C:\PROLOG\OLD.SYS
  7. PATH=C:\DOS;C:\PROLOG
  8. PROMPT=$p $g
  9. BGI_PATH=c:\prolog\bgi
  10.  
  11. C:\PROLOG >prolog
  12.  
  13. +++++++ Press Run +++++++++
  14.  
  15. Goal: envsymbol(path,PATH)
  16. PATH=C:\DOS;C:\PSYS
  17. 1 Solution
  18. Goal: envsymbol(bgi_path,PATH)
  19. PATH=C:\PROLOG\BGI
  20. 1 Solution
  21.