Hardware Reference
In-Depth Information
Don't forget that Linux is case sensitive, so the
Apt-get
command
won't work but
apt-get
will!
Linux is an inherently secure operating system. Most of the commands in this
chapter require administrator permissions. It is really easy to see whether you
need root permissions. If they are required, you will see the following:
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission
denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you
root?
To run a command as the system administrator, simply add it to the beginning of
any command that you need to run:
sudo
Depending on whether you have set a password or not, you may be asked to enter
your password. Running
apt-get
is really simple just type
apt-get
and press
Enter
:
apt-get
The
apt-get
command will respond with a heap of information about the different
options that are available. The options that we are interested in are:
•
apt-get update
•
apt-get install
•
apt-get remove
apt-get update
The first thing that we want to do is ensure that Raspbian knows what the latest
versions of software are. The
apt-get update
command automatically connects
to the Raspbian repository and downloads the latest list of packages.
It is recommended that before installing any software, you run the
apt-get update
command if you haven't done so recently.
