echo -n "Commande 2 :  "
      find / -name *.txt  >/tmp/monfind.txt 2>&1 &
       
      ps | grep -sq find
      while test `echo $?` -eq 0
      do
         activity
         ps | grep -sq find
      done    
      echo -e "\b"
      cat /tmp/monfind.txt
      echo -e "done."