The easiest to manage installation,upgradation and
uninstallation APT is the command used in all the linux based operating
systems. APT stands for Advance Packaging Tool. To install or remove packages
one must have root user permissions. So user should be a sudoers or one must be
logged in as a root user.
Obviously an internet connection is required for anyone to
update the packages or install new ones. A point to note is that one cannot
perform multiple installation at the same time.
APT keeps a url from where to get the software in the file located at:
/etc/apt/sources.list
One can see the contents of the file by using any installed editor:
sudo nano /etc/apt/sources.list
Content of file sources.list |
Before installing anything new lets update our list. The
command for the same is apt-get update.
sudo apt-get update
Installing a package with apt-get
We will for example will install and uninstall a package
called motion.
Typing the following command will prompt user for confirmation and will also provide disk usage information.
sudo apt-get install motion
Say yes and confirm the installation. Now we will move forward to removing the installed package of motion.
Removing a package with apt-get
We
will now completely remove the package and its dependencies using command
purge.
sudo apt-get purge motion
This will remove the package and all associated configuration files. The user is prompted for removal.
Another similar command is the remove command which can be used to uninstall a package
sudo apt-get remove motion
The user is prompted to confirm the removal.
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