git ignore not ignoring code example

Example 1: .gitignore file not ignoring the file

git rm -r --cached .
git add .
git commit -m “.gitignore is now working”

Example 2: git ignore file is not working

git rm -rf --cached .
git add .

Example 3: git ignore not working

git rm -r --cached .;
git add .;
git commit -m "Untracked files issue resolved to fix .gitignore";