Make xargs handle filenames that contain spaces

Question

$ ls *mp3 | xargs mplayer  

Playing Lemon.  
File not found: \'Lemon\'  
Playing Tree.mp3.  
File not found: \'Tree.mp3\'  

Exiting... (End of file)  

Answer 1

The xargs utility reads space, tab, newline and end-of-file delimited strings from the standard input and executes utility with the strings as arguments.

You want to avoid using space as a delimiter. This can be done by changing the delimiter for xargs. According to the manual:

 -0      Change xargs to expect NUL (``\0'') characters as separators,
         instead of spaces and newlines.  This is expected to be used in
         concert with the -print0 function in find(1).

Such as:

 find . -name "*.mp3" -print0 | xargs -0 mplayer

To answer the question about playing the seventh mp3; it is simpler to run

 mplayer "$(ls *.mp3 | sed -n 7p)"