snap(snappy)on Linux is a package manager like
- (FOR ME,) there are few available snap packages yet.
Sometimes I met the following messages in my Ubuntu terminal:
$ foo Command 'foo' not found, did you mean: command 'roo' from snap roo (2.0.3) command 'fgo' from deb fgo command 'fox' from deb objcryst-fox command 'woo' from deb python-woo command 'fio' from deb fio command 'goo' from deb goo command 'fop' from deb fop command 'fog' from deb ruby-fog See 'snap info <snapname>' for additional versions.
What is the
I'd ignored this type of messages and I hadn't known about
Today I googled it and found what it is.
I couldn't find the official page of this package manager.
The Wikipedia says:
Snappy is a software deployment and package management system originally designed and built by Canonical for the Ubuntu phone operating system.
And this comment on StackExchange is really understandable about snap:
If I create a deb package for Ubuntu 16.04 then that package won't work on any version of Ubuntu. I also have to make a 14.04, 15.04, 15.10, and so on. These are JUST Ubuntu debs.
This means if I want to release a new version of an application and not wait on distro maintainers to include it in a repository (which usually takes an absurd amount of time) then I have to provide over 20 packages to cover the majority of Linux distros and still that's not going to be covering everything. Ubuntu's Snaps provide a way to create one Snap that runs on every version of Ubuntu that supports Snaps. No longer distro version specific.
The following site explains very well about the usage of
I like the rollback(revert) feature very much :)
snap is not replacement of
apt-get, but I like its features and want
to use this as much as possible.
I'm now using Ubuntu 18.04 for my usual development environment and I tried to do that.
First, I listed up the
apt packages which is installed on my laptop.
$ apt list --installed > myaptpacakges.txt
Do not forget
--installed option, or you will get ALL the packages available
on apt world.
Next, I try to check with
snap find <query>, whether the apt package is
available on snap or not.
I found there are some packages on snap:
I omit packages whose publisher is apparently unofficial (like neovim).
awscli before through
the official instruction
pip and uninstalled it first.
Then I installed and got an error:
$ sudo snap install aws-cli error: This revision of snap "aws-cli" was published using classic confinement and thus may perform arbitrary system changes outside of the security sandbox that snaps are usually confined to, which may put your system at risk. If you understand and want to proceed repeat the command including --classic.
This message sounds like unpreferrable, and I quit to install packages which
--classic option now. (
tmux is the same.)
I am a Firefox user and I sometimes use Chrome just for debug.
Through the apt system, I'd installed
google-chrome-stable then uninstalled it
and install chromium but this crashed on the application boot phase.
This is my fisrt time to use chromium and I don't want to take time to survey
the bug or something, and soon back to the
google-chrome-stable of apt.
The pubclsher seems official but has no offcial mark, and I avoid installing it at this time.
$ snap find docker Name Version Publisher Notes Summary docker 17.06.2-ce docker-inc - The docker app deployment mechanism img 0.4.6 bashfulrobot - Unprivileged Dockerfile & OCI compatible container img builder. dry 0.9-beta.5 monch0 - A Docker manager for the terminal kata-containers 1.2.0 katacontainers✓ classic Lightweight virtual machines that seamlessly plug into the containers ecosystem kube-proxy 1.11.3 canonical✓ classic Kubernetes network proxy runs on each node.
This works well, finally!
# uninstall $ sudo apt remove -y firefox 4 sudo apt autoremove -y # It depends on your environment. $ sudo apt remove -y firefox-locale-en firefox-locale-ja # install snap's one $ sudo snap install firefox
Don't forget to change the default browser settings to Firefox.
The apt version was
spotify-client and I uninstalled it.
$ sudo snap install spotify works fine and the app also works with no problem!
Just for me,
spotify-client can be replaced by
I don't know there would be more packages available on snap platform in future, but I wish it will.
I will try to use
snap command first when I need a new package on my machine
from now on.