How to ignore files ended with ~ in git?

问题

My .gitignore file looks like that:

> cat .gitignore
.bundle
db/*.sqlite3
log/*.log
tmp/**/*
*~

But, git doesn't ignore the files ended with ~:

> git status
# On branch master
# Changes not staged for commit:
#   (use "git add <file>..." to update what will be committed)
#   (use "git checkout -- <file>..." to discard changes in working directory)
#
#   modified:   app/views/jobs/_form.html.erb
#   modified:   app/views/jobs/_form.html.erb~
#   modified:   public/stylesheets/jobs_new_edit.css~

What could be th ereason for that?

回答1:

modified means you have the file committed in the repo already. You should remove it first, then it will be ignored for addition.

回答2:

Probably because you have it versioned, it was added to the repository (or index) before.

来源：https://stackoverflow.com/questions/8678325/how-to-ignore-files-ended-with-in-git