Options
autoindent
ai
autoindent: In append mode after a <cr> the cursor will move directly below the first character on the previous line. This setting affects the current buffer only.
autoindent-global
ai-global
Same as autoindent, but affects all buffers.
noautoindent
noai
Cancel autoindent.
noautoindent-global
noai-g
ignorecase
ic
ignorecase: No distinction between upper and lower cases when searching.
noignorecase
noic
magic
ma
Regular expressions used in searches; nomagic means no regexps.
nomagic
noma
readonly
ro
readonly: The file is not to be changed. If the user attempts to write to this file, confirmation will be requested.
noreadonly
noro
shell=<string>
sh=<string>
shell: The program to be used for shell escapes (default ‘$SHELL’ (default /bin/sh)).
shiftwidth=<count>
sw=<count>
shiftwidth: Gives the shiftwidth (default 8 positions).
showmatch
sm
showmatch: Whenever you append a ), Vi shows its match if it’s on the same page; also with { and }. If there’s no match, Vi will beep.
noshowmatch
nosm
tabstop=<count>
ts=<count>
tabstop: The length of a <ht>; warning: this is only IN the editor, outside of it <ht>s have their normal length (default 8 positions). This setting affects the current buffer only.
tabstop-global
ts-g
Same as tabstop, but affects all buffers.
wrapmargin=<count>
wm=<count>
wrapmargin: In append mode Vi automatically puts an <lf> whenever there is an <sp> or <ht> within <wm> columns from the right margin.
wrapscan
ws
wrapscan: When searching, the end is considered ‘stuck’ to the begin of the file.
nowrapscan
nows
Cancel wrapscan.
:set <option>
Turn <option> on.
:set no<option>
Turn <option> off.
:set <option>=<value>
Set <option> to <value>.