We have understood the simple installation of apps from the web from the last post. In this post, we are going to take a deep dive into App installation in Ubuntu. we are going to learn the most common methods of app installation. this is not a GUI method of installation. we use terminal here
Linux manages software through packages, individual units of software that contain user interfaces, modules, and libraries. Most applications link several co-dependent packages together, and still others allow you to choose which packages to install and which to leave out at your own discretion. this is not a GUI method of installation, this is through the terminal.
it’s the Advanced Packaging Tool. It has a family of commands that allows you to add repositories; search for, install, and remove packages; and even simulate upgrades and such. we need superuser privileges to perform this action.
To update software repositories, use the following command
sudo apt update
To upgrade your software:
sudo apt upgrade
For a more thorough upgrade, which will also attempt to upgrade conflicting package dependencies to the newest version and removing older or unused dependencies, the command is as follows
sudo apt full-upgrade
To install a software/package :
sudo apt install packageName
To remove a software/package:
sudo apt remove packageName
A snap is a bundle of an app and its dependencies that works without modification across many different Linux distributions. Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions. snap makes app Installation in ubuntu more easier.
Find a snap
With snapd installed, snaps can be discovered, searched for, and installed from the Snap Store, from the Snap Store desktop app, and directly from the command line. For example, the following command returns a list of media players: open terminal,
$ snap find "media player" Name Version Developer Notes Summary (...) vlc 3.0.4 videolan✓ - The ultimate media player. mpv 0.26.0 casept - a free, open source, and cross-platform media player. (...) The ✓ alongside videolan in the above output indicates that the snap publisher has been verified.
Install a snap
Installing a snap is straightforward:
$ sudo snap install vlc
Update an installed snap
Snaps are updated automatically. However, to manually check for updates, use the following command:
$ sudo snap refresh vlc
Revert to a previously used snap
A snap may be reverted to a previously used revision with the
snap revert command:
$ sudo snap revert vlc vlc reverted to 3.0.5-1
Disable and enable snaps
If a snaps is temporarily undesired, it can be disabled and later enabled again. This avoids having to remove and reinstall them in the system:
$ sudo snap disable vlc vlc disabled $ sudo snap enable vlc vlc enabled
Remove a snap
To remove a snap from your system, along with its internal user, system and configuration data, use the remove command:
$ sudo snap remove vlc vlc removed
Flatpak is a utility for software deployment and package management for Linux. It is advertised as offering a sandbox environment in which users can run application software in isolation from the rest of the system.
Flatpak was developed as part of the freedesktop.org project (formerly known as X Desktop Group or XDG) and was originally called xdg-app
To install Flatpak on Ubuntu 18.10 (Cosmic Cuttlefish) or later, simply run in terminal :
$ sudo apt install flatpak $ sudo apt install gnome-software-plugin-flatpak $ flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
reboot the PC to apply this updates.
Install apps from flatpack:
Make sure to follow the setup guide before installing
$ flatpak install flathub org.videolan.VLC
To uninstall a Flatpak from the command line, you would go back to the terminal and issue the command:
sudo flatpak uninstall APPNAME
This is the basic introduction t app Installation in Ubuntu.