Snappy (package manager)
- Ubuntu Snappy Core
- Snapcraft - Snapcraft is the command line tool for writing and publishing your software as a snap.
- 10 Popular Windows Apps That Are Also Available on Linux
- What You Need to Know About Snaps on Ubuntu 20.04
Does the Snap Store Use Too Much Memory, data
On my Ubuntu 20.04, snap-store uses about 300MB memory (number 1 according to the system monitor).
Some in my list
Default in Ubuntu 20.04
$ snap list Name Version Rev Tracking Publisher Notes core18 20201210 1944 latest/stable canonical✓ base gnome-3-34-1804 0+git.3556cb3 60 latest/stable/… canonical✓ - gtk-common-themes 0.1-50-gf7627e4 1514 latest/stable/… canonical✓ - snap-store 3.38.0-59-g494f078 518 latest/stable/… canonical✓ - snapd 2.48.1 10492 latest/stable canonical✓ snapd
How Snappy packages are different from Deb
An article from PCWorld. Skype, Spotify, Minecraft, JetBrains Dev Suite, MySQL Workbench, Blender.
- Applications are no longer installed system-wide. The base Ubuntu operating system is kept securely isolated from applications you install later. Both the base system and Snappy packages are kept as read-only images.
- Snappy packages can include all the libraries and files they need, so they don’t depend on other packages.
- An update can never fail, as a package installation could potentially fail and become incomplete with typical Linux packages.
- Snappy also supports “delta” updates, which means only the changed bits of the package need to be downloaded and installed.
- Snappy-based Ubuntu systems might be standard.
Snap vs Flatpak vs AppImage
- The first big difference is that Snap is a project of Canonical that in the future intends that all Ubuntu programs will use this technology. While Flatpak is not associated with any Linux distribution and its goal is to improve the installation of the programs in Linux.
- Snap supports IoT or network services technologies while Flatpak focuses on desktop applications
Some snap commands
- snap help
- snap version
- snap list: see a list of installed snap app
- snap find queryname: find a snap app. For example snap find browser, snap find media.
- snap install appname: install snap apps
- snap remove appname: remove snap apps
- snap info appname: see more information about a snap app
- sudo snap refresh: update a snap app. You actually don't need it since snapd runs in the background and handles updates automatically
- snap changes: see a history of the changes made to your system
How to run the Snap applications: you can run snap applications just like any other application installed on your system.
# Update a package sudo snap refresh <package> # Update all packages sudo snap refresh
How To Remove Old Snap Versions To Free Up Disk Space
$ du -sh /var/lib/snapd/snaps/ 2.2G /var/lib/snapd/snaps/ $ ls /var/lib/snapd/snaps/ anbox_167.snap gnome-characters_206.snap atom_222.snap gnome-characters_254.snap ... gnome-calculator_406.snap sublime-text_58.snap gnome-characters_139.snap $ sudo snap set system refresh.retain=2 # Not useful [sudo] password for brb: $ du -sh /var/lib/snapd/snaps/ 2.2G /var/lib/snapd/snaps/ $ nano remove-old-snaps $ chmod +x remove-old-snaps $ sudo ./remove-old-snaps atom (revision 222) removed atom (revision 223) removed ... sublime-text (revision 51) removed sublime-text (revision 44) removed $ du -sh /var/lib/snapd/snaps/ 1.1G /var/lib/snapd/snaps/
I haven't found any tutorial yet!
Sorry, I don't get the command line back. Booting stuck in the middle.