Snap

Snap is a software deployment and package management for Linux available at least since 2015 with support for channels and parallel installs .

Snaps are basically an application compiled together with its dependencies and libraries – providing a sandboxed environment for the application to run. These are easier and faster to install, can receive latest updates and is confined from the OS and other apps.

Basic operations

• Installation: sudo apt install snapd
• Install your first application: snap install hello
• Remove an application: snap remove hello-world
• Search for your application: snap find SNAP_TO_SEARCH
  • Search for Canonical’s snaps:snap find Canonical
• List installed snaps: snap list
• snap changes
• Show Info: snap info SNAP_NAME
• Update your snaps: sudo snap refresh

Directories

• /var/lib/snapd/snaps/

Snapshots and Roll Back

• Take a snapshot: snap save
• Roll Back (including data): sudo snap revert hello

Channels

• Change channel: sudo snap refresh hello --channel=beta

Adoption

Snaps were introduced in Ubuntu 16.04 LTS.

Activities

• Read snap source code: https://github.com/snapcore/snapd
• Enable snaps in Fedora: sudo dnf install snapd and sudo systemctl enable --now snapd.socket

See also

• snap Snapcraft
• Ubuntu, snap, MAAS, PPA, Ubuntu 18.04 LTS, Canonical Livepatch, Ubuntu Advantage
• APT: apt-cache, add-apt-repository PPA, apt show, wajig, apt install, apt purge, apt update, apt upgrade
• Docker containers
• Package managers: dpkg, APT, RPM, YUM, DNF, Homebrew, pkgutil, opkg, Helm, pkg and snap, npm, Aptitude, alien

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Original Source: https://en.wikiversity.org/wiki/Snap