:scriptnames # list vimrc files in use
:set nowrap # set a setting
:set nowrap? # get a setting
:set tabstop=8
:set expandtab # replaces tabs with n spaces on file open
:set softtabstop=0 # insert n spaces tabkey
:set shiftwidth=0 # insert n spaces on », «
:set autoindent
:set smartindent
:set cindent
:set showmode # show “insert” mode on bottom line
to leave insert mode