clean <Root-Class1> <Root-Class2> ...

Command `clean' removes all intermediate files produced by
previous `compile' or `compile_to_c'.
Only the corresponding executable file remains.
 
- Example 1 - 
Remove intermediate files produced for the HELLO_WORLD 
program :

   clean hello_world 

You can also type :

   clean hello_world.e

or you can also type :

   clean HELLO_WORLD

- Example 2 - 
Under Unix or DOS, remove all intermediates files in the
current directory :

   clean *.e
