How can I edit the default vimrc file on osx? (sudo chown ... gives Operation not permitted )
In osx vim
/usr/share/vim/vimrc is the default vimrc file
My username is 'apple'
If I try to do
vim /usr/share/vim/vimrc then it says 'read only'
~/.vim$ ls -l /usr/share/vim/vimrc -rw-r--r-- 1 root wheel 532 5 Apr 2017 /usr/share/vim/vimrc ~/.vim$
If I try to change ownership of the file
~/.vim$ sudo chown apple /usr/share/vim/vimrc chown: /usr/share/vim/vimrc: Operation not permitted ~/.vim$
similarly with permissions (giving write access to non-root users temporarily for the purposes of me editing the file)
~/.vim$ sudo chmod 666 /usr/share/vim/vimrc chmod: Unable to change file mode on /usr/share/vim/vimrc: Operation not permitted ~/.vim$
sudo chown does work on another file though, so it's not a password issue.
~/.vim$ cp /usr/share/vim/vimrc zzz ~/.vim$ ls -l zzz -rw-r--r-- 1 apple staff 532 3 May 23:10 zzz ~/.vim$ sudo chown root zzz ~/.vim$ sudo chown apple zzz ~/.vim$