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
• snap set. For example: snap set rocketchat-server port=4000
• snap get
• snap switch
• snap services

Directories

• /var/lib/snapd/snaps/
• /snap/
• /snap/bin/
• /var/lib/snapd/cache/

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
• snap info PACKAGE (To show channels)

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
• sudo systemctl restart snapd.service

Related

• snap start
• Squashfs
• find /snap/<snapname>/current/
• /snap/bin/
• Flatpak
• systemctl stop snapd
• geth --syncmode snap

See also

• Snap: snap, snapd, snapctl, snapcraft, snap: [list | install |find | info | services | start| stop | remove | refresh | set | logs ] snapd | snap list | snap version | snap find aws | snap --help ]
• Package managers: dpkg, APT, RPM, YUM, DNF, homebrew, pkgutil, opkg, Helm, pkg and snap, npm, Aptitude, alien, Conan, CRAN, Chocolatey, NuGet, PackageKit, Wajig, pacman, PIP, Apache Ivy, List packages, List files in packages, Spack

Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy.

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