|The names of commands.
|Use `ls -l` to list all files.
|The names of files.
|On-screen computer output.
|.... You have mail. .... |What the user types, contrasted with on-screen computer output. a||
|.... % date +"The time is %H:%M" The time is 09:18 .... |Manual page references. |Use man:su to change user identity. |User and group names. |Only `root` can do this. |Emphasis. |The user _must_ do this. |Text that the user is expected to replace with the actual text. |To search for a keyword in the manual pages, type `man -k _keyword_` |Environment variables. |`$HOME` is set to the user's home directory.|
|Tips are represented like this, and contain information helpful to the user, such as showing an easier way to do something.|