| "Quoted text" | Quotes from people, quoted computer output. |
|
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
options
arguments
|
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".
|
| Button |
Graphical button to click, like the
OK 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. |
Free eBook: 
