Ahh, now I understood. In command echo \\\\ first dash interprets the command line (and the arguments), then internally echo interprets the arguments. But echo is part of dash, so dash interprets twice the same argument. Sorry I didn't know that. Thank you for your help and your time. Bosco. -- To unsubscribe from this list: send the line "unsubscribe dash" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html