[root@s14wefm tmp]# ruby prova6.rb 
Child 24308
Child node=kkkkk
Child finito ...
[root@s14wefm tmp]# ruby prova2.rb 
Parent is 24311
Parent eseguo: ruby /tmp/prova6.rb
Child 24313
Child node=kkkkk
Child finito ...
[root@s14wefm tmp]#
