参考：

1. http://www.commandlinefu.com/commands/view/1204/save-a-file-you-edited-in-vim-without-the-needed-permissions

2. http://www.cyberciti.biz/faq/vim-vi-text-editor-save-file-without-root-permission/2-2/

参考：

1. http://www.commandlinefu.com/commands/view/1204/save-a-file-you-edited-in-vim-without-the-needed-permissions

2. http://www.cyberciti.biz/faq/vim-vi-text-editor-save-file-without-root-permission/2-2/