Mac vim语法高亮

首先找到系统自带的vim配置文件：

➜  cat /usr/share/vim/vimrc
" Configuration file for vim
set modelines=0     " CVE-2007-2438

" Normally we use vim-extensions. If you want true vi-compatibility
" remove change the following statements
set nocompatible    " Use Vim defaults instead of 100% vi compatibility
set backspace=2     " more powerful backspacing

" Don't write backup file if vim is being called by "crontab -e"
au BufWrite /private/tmp/crontab.* set nowritebackup nobackup
" Don't write backup file if vim is being called by "chpass"
au BufWrite /private/etc/pw.* set nowritebackup nobackup

let skip_defaults_vim=1

将其复制到当前用户的根目录下：

➜  cp /usr/share/vim/vimrc ~/.vimrc
➜  cd ~
➜  vim .vimrc

增加以下三行：

syntax on //主要是这一句
set nu! //显示行数，可以不加
set autoindent //自动缩进，加不加也可以

保存之后无需重启系统，即时生效。