How to remove a file from git and move it to .gitignore?

Question

git

Accidentally committed and pushed a file with a secret. Now I added it to .gitignore, but it's not clear how to remove it from the git itself and the remote repository?

Answer 1

git rm --cache <file>
git commit -m 'no one should see my secret'
git push

only in the history of commits it will remain - you have to look for how to remove it from there as well.
It's better to change anyway, if possible.