B.1.2. Option Symbols
In ex command syntax, options might be any of the following:
- !
Indicates a variant form of the command, overriding the normal
behavior.
- count
- The number of times the command is to be repeated.
count cannot precede the command, because
a number preceding an ex command is treated
as a line address. d3
deletes three lines beginning with the current line; 3d deletes line 3.
- file
- The name of a file that is affected by the command. % stands for
current file; # stands for previous file.