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Using apt-get terminal command in Ubuntu

By using apt-get terminal command in Ubuntu, you will be able to serach, install, update and remove Ubuntu applications from repositories.

To resynchronize the package index files from their sources via Internet, also known as repositories. You need to do this after each edit of your repositories file /etc/apt/sources.list:

sudo apt-get update


To install the newest versions of all packages currently installed on the system:

sudo apt-get upgrade


Install is followed by one or more packages (programs) desired for installation. If package is already installed it will try to update to latest version.

sudo apt-get install package-name


To uninstall a package:

sudo apt-get remove package-name


To uninstall a package and remove all of it's settings:

sudo apt-get remove --purge package-name


If you have terminated an installation, you can clean it with:

sudo apt-get clean


All the terminal options for apt-get can be found running:

sudo apt-get --help


It will output the followings:

Usage: apt-get [options] command
apt-get [options] install|remove pkg1 [pkg2 ...]
apt-get [options] source pkg1 [pkg2 ...]

apt-get is a simple command line interface for downloading and
installing packages. The most frequently used commands are update
and install.

Commands:
update - Retrieve new lists of packages
upgrade - Perform an upgrade
install - Install new packages (pkg is libc6 not libc6.deb)
remove - Remove packages
autoremove - Remove automatically all unused packages
purge - Remove packages and config files
source - Download source archives
build-dep - Configure build-dependencies for source packages
dist-upgrade - Distribution upgrade, see apt-get(8)
dselect-upgrade - Follow dselect selections
clean - Erase downloaded archive files
autoclean - Erase old downloaded archive files
check - Verify that there are no broken dependencies

Options:
-h This help text.
-q Loggable output - no progress indicator
-qq No output except for errors
-d Download only - do NOT install or unpack archives
-s No-act. Perform ordering simulation
-y Assume Yes to all queries and do not prompt
-f Attempt to correct a system with broken dependencies in place
-m Attempt to continue if archives are unlocatable
-u Show a list of upgraded packages as well
-b Build the source package after fetching it
-V Show verbose version numbers
-c=? Read this configuration file
-o=? Set an arbitrary configuration option, eg -o dir::cache=/tmp
See the apt-get(8), sources.list(5) and apt.conf(5) manual
pages for more information and options.
This APT has Super Cow Powers.


Resources: cyberciti.biz

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