The vimrc file contains optional runtime configuration settings to initialize Vim when it starts. On Unix based systems, the file is named .vimrc, while on Windows systems it is named _vimrc. [help vimrc] You can customize Vim by putting suitable commands in your vimrc. Here is a very simple example: " Always wrap long lines: set wrap Lines that begin with " are comments and are not read by vim. Search for file vimrc_example.vim in your Vim files for another example. [help vimrc-intro] [ help vimrc_example.vim] help auto-setting] [ help filetype]