title: My .gitignore file not not working although all file is untracked files
body: <p>All files is untracked ,i try add password.txt file to .gitignore but it doesn't work,i already have try other files in untracked list too.</p>
  <p><strong>See Picture:</strong></p>
  <p><img src="https://i.stack.imgur.com/5ViMD.png" alt="screenshot" /></p>
  <p>Like you see,after add password.txt file to .gitignore ,but in untracked list,it still there!
  Someone know how to solve this please !!!!</p>