On Fri, 2011-05-06 at 10:37 +0800, Dr. Mahmudur Rahman wrote: > Need help! you need to learn some basics of Unix. Please do not reply to a digest: see http://www.quantum-espresso.org/wiki/index.php/Pw_users P. -- Paolo Giannozzi, IOM-Democritos and University of Udine, Italy