0.8. Command Interpreter Program (Shell) Conventions
When you type a command and press the Enter key to execute this
command, it's usually interpreted by some kind of
command interpreter program, known as a shell.
In this book we will use this term when we refer to a command
interpreter program.
If you are running your web server on some Unix flavor, it is likely
that you are using the C-style shell (e.g., csh
or tcsh) or the Bourne-style shell (e.g.,
sh, ksh, or
bash) for starting programs from the command
line. In most examples in this book, it doesn't
matter which shell program is used. In places where a different
syntax should be used for different shell programs, we will say so.
The following command-line conventions are used in this book:
panic% command
panic% is a shell prompt when you are logged on as
a non-root user, usually yourself.
panic# command
panic# is a shell prompt when you are logged on as
root. It implies that you have to become a
root user to run the command. One of the ways to
switch to root mode is to execute the
su utility and supply the
root user password.