How to overwrite read-only files with vim
We can file this post into the category of "stuff I've known how to do for a long time, but I was shocked I hadn't put out a post discussing it before".
If you use Vim or Neovim as much as I do, you end up touching a lot of files in a lot of different places. If you're editing certain system files, they may be flagged as read-only, and if so, Vim makes you take an extra step to be able to save the file.
First and foremost, if you're editing a file that you don't own or have rights
to edit, you'll need to make sure to elevate your privileges with su or
sudo. Once you've done that, go ahead and edit your file as you normally
would.
When you go to save the file with :w or :wq, you should be greeted with a
lovely error:
E45: 'readonly' option is set (add ! to override)Funny story, the first time I ran into this, back in the 1990s, my first
inclination was to try to save the file with :!w, which ends up dumping out
some information about the process and user and other system stuff. Oh how far
I've come.
All right, back from my trip down memory lane, all you need to do is exactly what the message said, which is ADD the band at the end:
:w!Assuming you have the right permissions, you'll be able to save the file. If you don't have the right permissions, you'll be given an error about that.