For example, I want to use mplayer to play the music of several dirs, type like this in bash: $find './l_music/La Scala Concert 03 03 03' './l_music/Echoes The Einaudi Collection' './l_music/Ludovico Einaudi - The Royal Albert Hall Concert [2 CD] (2010)' -name '*.mp3' | xargs mplayer Well, You Know, the find command return path, which dir and file always have space, the pipe right command mplayer do not accept those mp3 path. I think that if wrap the find return strings with single/double quotation marks (\'or\") to feed to mplayer, the problem will be solved. But how can I do to solve the problem just use bash command, do not use bash or perl scripts, while can give me one perl line command use Perl Command-Line Options.