Fix E45 in Vim
Vim is an improved version of the traditional vi editor. It is a popular command-line editor on Linux and Unix systems, and it is also available on Windows. Many administrators use it to edit configuration files directly on a server, often through an SSH session. The first time Vim refuses to save a long configuration file, it can feel like the file is lost. The content is still in Vim’s buffer, but the current user does not have permission to write the file back to disk. The important thing is to stay in Vim and use the buffer to write the file through sudo. ...