title: List all files older than x days only in current directory
body: <p>I am new to unix and couldn't get appropriate outcome in other questions.</p>
  
  <p>I want to list only files in current directory which are older than x days. I have below restriction</p>
  
  <ul>
  <li>List only files in current folder which are older than 30
  days </li>
  <li>Output shouldn't include directories and subdirectories</li>
  <li>This should list files similar as "ls" command does</li>
  <li>Output should look like <code>file1 file2 file3 ..</code></li>
  </ul>
  
  <p>I used <code>find . -mtime +30</code>. but this gives files and files in sub-directories as well. I would like to restrict doing search recursively and not to search inside directories.</p>
  
  <p>Thanks a lot in advance !</p>