Arguments and keywords Use braces to group alternative but required arguments and keywords. Format Within command syntax, place braces in Times plain font. Character string Use angle brackets in examples to indicate a character string that the user enters but that does not appear on the screen, such as a password. Do not add spaces inside the brackets. Do not add spaces inside the brackets.
Optional elements Use square brackets to indicate optional elements in command syntax.
Add one space on either side of a vertical bar. Commands and keywords Use Times bold font to format commands, keywords, and punctuation that are part of a command that the user enters. Index entries Use Times plain font and add the word command for the names of commands in the index. Introductory sentences Do not leave a sentence that introduces command syntax or an example at the bottom of one page when the syntax or example is at the top of the next page. Do not add spaces inside the braces or brackets.