From b721ba9ee2860585edf2bf0f13482ee32bd88bc6 Mon Sep 17 00:00:00 2001 From: lkxed Date: Sun, 17 Jul 2022 00:01:46 +0800 Subject: [PATCH] =?UTF-8?q?[=E6=89=8B=E5=8A=A8=E9=80=89=E9=A2=98][tech]:?= =?UTF-8?q?=2020220716=20How=20to=20Clean=20Up=20Snap=20Versions=20to=20Fr?= =?UTF-8?q?ee=20Up=20Disk=20Space.md?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ... Up Snap Versions to Free Up Disk Space.md | 105 ++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 sources/tech/20220716 How to Clean Up Snap Versions to Free Up Disk Space.md diff --git a/sources/tech/20220716 How to Clean Up Snap Versions to Free Up Disk Space.md b/sources/tech/20220716 How to Clean Up Snap Versions to Free Up Disk Space.md new file mode 100644 index 0000000000..6e1ea02f35 --- /dev/null +++ b/sources/tech/20220716 How to Clean Up Snap Versions to Free Up Disk Space.md @@ -0,0 +1,105 @@ +[#]: subject: "How to Clean Up Snap Versions to Free Up Disk Space" +[#]: via: "https://www.debugpoint.com/clean-up-snap/" +[#]: author: "Arindam https://www.debugpoint.com/author/admin1/" +[#]: collector: "lkxed" +[#]: translator: " " +[#]: reviewer: " " +[#]: publisher: " " +[#]: url: " " + +How to Clean Up Snap Versions to Free Up Disk Space +====== +This quick guide with a script helps to clean up old snap versions and free some disk space in your Ubuntu systems. + +I was running out of disk space in my test system with Ubuntu. So I was investigating via GNOME’s Disk Usage Analyser to find out which package is consuming the precious SSD space. Apart from the usual cache and home directory – to my surprise, I found that Snap and Flatpak consume a considerable amount of storage space. + +![Snap size – before cleanup][1] + +Although, I always maintain a rule – not to use Snap or Flatpak unless necessary. This is mainly because of their installation size and other issues. I prefer vanilla deb and rpm packages. Over the years, I have installed and removed a certain amount of Snap packages in this test system. + +The problem arises after uninstallation; Snap keeps some residue files in the system, unknown to the general users. + +So I opened the Snap folder `/var/lib/snapd/snaps` and discovered that Snap is keeping track of older versions of previously installed/uninstalled packages. + +For example, in the below image, you can see GNOME 3.28, 3.34, and Wine – all of these are removed long back. But they are still there. Its happening because of the Snap design which keeps versions of uninstalled packages after a proper uninstallation. + +![Files under snaps directory][2] + +Alternatively, you can get the same in terminal using: + +``` +snap list --all +``` + +![snap list all][3] + +The default value is 3 for several revisions for retention. That means Snap keeps 3 older versions of each package, including the active version. This is okay if you do not have constraints on your disk space. + +But for servers and other use cases, this can easily run into cost issues, consuming your disk space. + +However, you can easily modify the count using the following command. The value can be between 2 to 20. + +``` +sudo snap set system refresh.retain=2 +``` + +### Clean Up Snap Versions + +In a post in SuperUser, Popey, the ex-Engineering Manager at Canonical, [provided a simple script][4] that can clean up old versions of Snaps and keep the latest one. + +Here’s the script we will use to clean the Snap up. + +``` +#!/bin/bash + #Removes old revisions of snaps + #CLOSE ALL SNAPS BEFORE RUNNING THIS + set -eu + LANG=en_US.UTF-8 snap list --all | awk '/disabled/{print $1, $3}' | + while read snapname revision; do + snap remove "$snapname" --revision="$revision" + done +``` + +Save the above script as .sh in a directory (for example`clean_snap.sh` ), give it executable permission and run. + +``` +chmod +x clean_snap.sh +``` + +When I ran the script, it reduced a lot of disk space. The script would also show the name of the package being removed. + +![Executing the script][5] + +![Snaps size after cleanup][6] + +### Closing Notes + +There are always debates on how efficient Snap’s design is. Many say it is broken by design, bloated, and heavy on systems. Some part of that argument is true, I would not deny it. The whole concept of sandboxing applications is great if implemented and enhanced properly. I believe, Flatpak does a better job compared to Snap. + +That said, I hope this helps you clean up some disk space. Although it is tested in Ubuntu, it should work in all Linux distribution that supports Snap. + +Also, check out our guide on [how to clean up Ubuntu][7] with additional steps. + +Finally, if you are looking for cleaning up **Flatpak** apps, refer [this guide][8]. + +-------------------------------------------------------------------------------- + +via: https://www.debugpoint.com/clean-up-snap/ + +作者：[Arindam][a] +选题：[lkxed][b] +译者：[译者ID](https://github.com/译者ID) +校对：[校对者ID](https://github.com/校对者ID) + +本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出 + +[a]: https://www.debugpoint.com/author/admin1/ +[b]: https://github.com/lkxed +[1]: https://www.debugpoint.com/wp-content/uploads/2021/03/Snap-size-before-cleanup.jpg +[2]: https://www.debugpoint.com/wp-content/uploads/2021/03/Files-under-snaps-directory.jpg +[3]: https://www.debugpoint.com/wp-content/uploads/2021/03/snap-list-all.jpg +[4]: https://superuser.com/a/1330590 +[5]: https://www.debugpoint.com/wp-content/uploads/2021/03/Executing-the-script.jpg +[6]: https://www.debugpoint.com/wp-content/uploads/2021/03/Snaps-size-after-cleanup.jpg +[7]: https://www.debugpoint.com/2018/07/4-simple-steps-clean-ubuntu-system-linux/ +[8]: https://www.debugpoint.com/clean-up-flatpak/