The following typographic and usage conventions occur in this text:
Table 1. Typographic and usage conventions
| Text type | Meaning |
|---|---|
| “Quoted text” | Quotes from people, quoted computer output. |
terminal view | Literal computer input and output captured from the terminal, usually rendered with a light grey background. |
| command | Name of a command that can be entered on the command line. |
VARIABLE |
Name of a variable or pointer to content of a
variable, as in $VARNAME.
|
option |
Option to a command, as in “the
-a option to the
ls command”.
|
argument |
Argument to a command, as in
“read man
ls
”.
|
|
| Command synopsis or general usage, on a separated line. |
filename |
Name of a file or directory, for example “Change
to the /usr/bin
directory.”
|
| Key | Keys to hit on the keyboard, such as “type Q to quit”. |
| Graphical button to click, like the button. | |
| → | Choice to select from a graphical menu, for instance: “Select → in your browser.” |
| Terminology | Important term or concept: “The Linux kernel is the heart of the system.” |
| See Glossary | link to related subject within this guide. |
| The author | Clickable link to an external web resource. |