title: Quit hidden attribute to many files in a directory once in UNIX
body: <p>Hello Everybody there.</p>
  
  <p>I wanna know if there is a command of set of commands (maybe a pipeline set) which can be used to change the hidden attribute of many files stored in a particular directory, with the same name.</p>
  
  <p>ie.</p>
  
  <pre><code>ls -la inside torrents/music/david_guetta_greatest_hits shows the next files:
  
  drwxrwxrwx  20 crsuarez  staff      680 Apr  9 19:25 .
  drwxrwxrwx  20 crsuarez  staff      680 Apr  9 19:11 ..
  -rw-r--r--   1 crsuarez  staff  6894561 Apr  9 19:16 .I'm Famous.wma
  -rw-r--r--   1 crsuarez  staff  7543777 Apr  9 19:16 .Gettin Over.wma
  -rw-r--r--   1 crsuarez  staff  6378465 Apr  9 19:16 .I Gotta Feeling.wma
  -rw-r--r--   1 crsuarez  staff  7245793 Apr  9 19:16 .In love with myself.wma
  -rw-r--r--   1 crsuarez  staff  7060449 Apr  9 19:16 .It's the Way You Love Me.wma
  -rw-r--r--   1 crsuarez  staff  7737313 Apr  9 19:16 .Love Don't Let Me Go.wma
  -rw-r--r--   1 crsuarez  staff  7737313 Apr  9 19:16 .Love is Gone.wma
  -rw-r--r--   1 crsuarez  staff  6628321 Apr  9 19:16 .Memories.wma
  -rw-r--r--   1 crsuarez  staff  7525345 Apr  9 19:16 .Money.wma
  -rw-r--r--   1 crsuarez  staff  7806945 Apr  9 19:16 .One Love.wma
  -rw-r--r--   1 crsuarez  staff  7192545 Apr  9 19:16 .Sexy Bitch.wma
  -rw-r--r--   1 crsuarez  staff  6954977 Apr  9 19:16 .Stay.wma
  -rw-r--r--   1 crsuarez  staff  8025057 Apr  9 19:16 .The World is Mine.wma
  -rw-r--r--   1 crsuarez  staff  7769057 Apr  9 19:16 .TitaniuM.wma
  -rw-r--r--   1 crsuarez  staff  6693857 Apr  9 19:16 .Turn ME ON.wma
  -rw-r--r--   1 crsuarez  staff  7215073 Apr  9 19:16 .When Love Takes Over.wma
  -rw-r--r--   1 crsuarez  staff  8182753 Apr  9 19:16 .Without YoU.wma
  </code></pre>
  
  <p>I wanna unhide all of this files with a single set of commands (I don't care if I have to use pipeline), instead of use <code>mv .hidden_file_name not_hidden_file_name</code>.</p>
  
  <p>The solution must be OSX Complain. ;)</p>