Walking directory

gistfile1.m

/* 
 * Excerpt from :
 * http://rosettacode.org/wiki/Walk_a_directory/Recursively#Objective-C 
 */
NSString *dir = NSHomeDirectory();
NSDirectoryEnumerator *de = [[NSFileManager defaultManager] enumeratorAtPath:dir];
 
NSString *file;
while ((file = [de nextObject]))
  if ([[file pathExtension] isEqualToString:@"mp3"])
    NSLog(@"%@", file);