Mac OS X Tiger in a Nutshell

Syntax of vi Commands

In vi, commands have the following general form:

    [n] operator [m] object

Here are the basic editing operators :

c

Begin a change.

d

Begin a deletion.

y

Begin a yank (or copy).

If the current line is the object of the operation, the operator is the same as the object: cc, dd, yy. Otherwise, the editing operators act on objects specified by cursor-movement commands or pattern-matching commands. n and m are the number of times the operation is performed or the number of objects the operation is performed on. If both n and m are specified, the effect is n m.

An object can represent any of the following text blocks:

Word

Includes characters up to a space or punctuation mark. A capitalized object is a variant form that recognizes only blank spaces.

Sentence

Extends to ., !, or ? followed by two spaces.

Paragraph

Extends to next blank line or nroff/troff paragraph macro (defined by para = option).

Section

Extends to next nroff/troff section heading (defined by sect = option).

Examples

2cw

Change the next two words

d}

Delete up to next paragraph

d^

Delete back to beginning of line

5yy

Copy the next five lines into temporary buffer (for future pasting)

y]]

Copy up to the next section into temporary buffer (for future pasting)