On 12/11/10 17:16, xinyou yan wrote: > 1. > In my system > umask enter > 022 > > I want to know why i do the commander > > umask -S > it show Improper mask > not u=rwx,g=..... > > 2. anybody who know how to listen the music like .ape or flac > > flac will play with mplayer.