title: Create a folder inside other folders using bash
body: <p>I have a long list of folders that are siblings to each other, they all start with "0" <del>and are numerically named (001, 002, 003...)</del> but names are not only numerical and are not correlative (for example I have 0010_foo, 0032_bar, 0150_baz, etc).
  I need to create a new folder (js) inside each of the folders on my list. I'd like to do it recursively using the command line.</p>
  
  <p>I've tried:</p>
  
  <pre><code>$ cd path/to/my/root/folder
  $ find 0* -type d -exec mkdir js {} \;
  </code></pre>
  
  <p>But I get an error for each attempt: "mkdir: js: file exists". No need to say there's no directory named js inside my folders but they are files with .js extension.</p>
  
  <p>Where is the error in my command and how can I fix it? Thanks!</p>