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# 单独粘贴运行，更新用户的缓存信息，让密码有效期延长5分钟
sudo -v

# 批量粘贴运行
sudo apt install -y vim
if [ ! -f "/etc/vim/vimrc_bak" ]; then
  sudo cp /etc/vim/vimrc /etc/vim/vimrc_bak
fi
sudo tee -a /etc/vim/vimrc << 'EOF'
" vimrc for me
set nu
set ai
set si
set sw=4
set ts=4
set mouse=a
noremap <C-a> <Esc>ggVG "全选
syntax enable
syntax on
EOF