The value of this option specifies the type of a buffer: normal buffer nofile buffer which is not related to a file and will not be written nowrite buffer which will not be written acwrite buffer which will always be written with BufWriteCmd autocommands. quickfix quickfix buffer, contains list of errors |:cwindow| or list of locations |:lwindow| help help buffer (you are not supposed to set this manually) terminal buffer for a |terminal| (you are not supposed to set this manually) prompt buffer where only the last line can be edited, meant to be used by a plugin, see |prompt-buffer| {only when compiled with the |+channel| feature} popup buffer used in a popup window, see |popup|. {only when compiled with the |+textprop| feature}