Here are special commands and techniques for putting in and taking out
blank lines.
-@c widecommands
@table @kbd
@item C-o
Insert one or more blank lines after the cursor (@code{open-line}).
buffer releases its space back to the operating system so that other
programs can use it. Here are some commands for killing buffers:
-@c WideCommands
@table @kbd
@item C-x k @var{bufname} @key{RET}
Kill buffer @var{bufname} (@code{kill-buffer}).
This chapter describes the Emacs commands that add, remove, or
adjust indentation.
-@c WideCommands
@table @kbd
@item @key{TAB}
Indent the current line ``appropriately'' in a mode-dependent fashion.
@findex kill-region
@kindex C-w
-@c DoubleWideCommands
@table @kbd
@item C-w
Kill region (from point to the mark) (@code{kill-region}).
Here are some commands for setting the mark:
-@c WideCommands
@table @kbd
@item C-@key{SPC}
Set the mark where point is (@code{set-mark-command}).