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.
Same as autoindent, but affects all buffers.
Cancel autoindent.
Cancel autoindent-global.
ignorecase: No distinction between upper and lower cases when searching.
Cancel ignorecase.
Regular expressions used in searches; nomagic means no regexps.
Cancel magic.
readonly: The file is not to be changed. If the user attempts to write to this file, confirmation will be requested.
Cancel readonly.
shell: The program to be used for shell escapes (default ‘$SHELL’ (default /bin/sh)).
shiftwidth: Gives the shiftwidth (default 8 positions).
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.
Cancel showmatch.
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.
Same as tabstop, but affects all buffers.
wrapmargin: In append mode Vi automatically puts an <lf> whenever there is an <sp> or <ht> within <wm> columns from the right margin.
wrapscan: When searching, the end is considered ‘stuck’ to the begin of the file.
Cancel wrapscan.
Turn <option> on.
Turn <option> off.
Set <option> to <value>.