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[#]: author: "Abhishek Prakash https://itsfoss.com/"
[#]: collector: "lkxed"
[#]: translator: "geekpi"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
[#]: reviewer: "wxy"
[#]: publisher: "wxy"
[#]: url: "https://linux.cn/article-14885-1.html"
如何在 Ubuntu 中卸载 Deb 包
如何在 Ubuntu 中卸载 deb 包
======
[从 deb 文件安装应用][1]非常简单。双击它,它会在软件中心中打开,然后从那里安装它。
但是如何在 Ubuntu 或 Debian 中卸载 .deb 包呢?你如何删除一段时间前安装的软件包。
![](https://img.linux.net.cn/data/attachment/album/202208/01/180906afaqifcsqqsfsxyq.jpg)
虽然这有几个如果和但是,但删除 deb 文件的最简单和最可靠的方法是使用 apt remove 命令。
[从 .deb 文件安装应用][1] 非常简单。双击它,它会在软件中心中打开,然后从那里安装它。
但是如何在 Ubuntu 或 Debian 中卸载 deb 包呢?如何删除一段时间前安装的软件包呢。
虽然这有几个如果和但是,但删除 .deb 文件的最简单和最可靠的方法是使用 `apt remove` 命令。
```
sudo apt remove program_name
```
如你所见,**你需要在这里知道确切的包名称**。这可能并不总是直截了当的。例如,如果你在 Ubuntu 上安装 Google Chrome则该程序在命令行中称为 “google-chrome-stable”。你已经知道了吗我猜不是
如你所见,**你需要在这里知道确切的包名称**。这可能并不总是显而易见的。例如,如果你在 Ubuntu 上安装 Google Chrome则该程序在命令行中称为 “google-chrome-stable”。你已经知道了吗我猜你不知道
在本教程中,我将详细介绍如何找到确切的包名称,然后使用它来删除应用。我还将讨论使用图形方法删除 .deb 包。
在本教程中,我将详细介绍如何找到确切的包名称,然后使用它来删除应用。我还将讨论使用图形方法删除 deb 包。
### 从 Ubuntu 中删除通过 deb 文件安装的软件包
### 从 Ubuntu 中删除通过 .deb 文件安装的软件包
在我向你展示如何从命令行删除 deb 包之前,让我们在软件中心应用中快速查看它。
@ -35,11 +38,11 @@ Ubuntu 有软件中心 GUI 应用,允许搜索、安装和删除应用。
![Searching for installed applications may not show any results in Ubuntu Software Center][2]
但是,如果向下滚动,你仍可能在“已安装”部分下找到它。外部应用通常不带 logo 显示。
但是,如果向下滚动,你仍可能在“已安装”部分下找到它。外部应用通常不带徽标显示。
![Some installed applications can be found in the installed tab of the Software Center][3]
如果找到它,你可以通过单击垃圾桶图标或删除按钮来删除该应用。
如果找到它,你可以通过单击垃圾桶图标或删除按钮来删除该应用。
![Removing applications from the Ubuntu software center][4]
@ -47,9 +50,9 @@ Ubuntu 有软件中心 GUI 应用,允许搜索、安装和删除应用。
#### 方法 2使用 apt 命令删除应用
我假设你不知道应用命令的确切名称。你可能不知道 Google Chrome 安装为 google-chrome-stable 而 Edge 安装为 microsoft-edge-stable是很自然的
我假设你不知道应用命令的确切名称。你可能不知道 Google Chrome 安装为 google-chrome-stable 而 Edge 安装为 microsoft-edge-stable很正常
如果你前几个字母,那么 tab 补全可能会有所帮助。否则,你可以[使用 apt 命令列出已安装的应用][5] 并使用 grep 搜索应用程序名称:
如果你知道前几个字母,那么 tab 补全可能会有所帮助。否则,你可以 [使用 apt 命令列出已安装的应用][5] 并使用 `grep` 搜索应用程序名称:
```
apt list --installed | grep -i possible_package_name
@ -71,21 +74,21 @@ apt list --installed | grep -i chrome
apt info exact_package_name
```
获得确切的软件包名称后,你可以使用 apt remove 命令将其删除。
获得确切的软件包名称后,你可以使用 `apt remove` 命令将其删除。
```
sudo apt remove exact_package_name
```
你还可以使用 apt-get remove 或 dpkg uninstall 命令。
你还可以使用 `apt-get remove``dpkg uninstall` 命令来删除
![Removing applications installed via deb files using the apt command][7]
![Removing applications installed via .deb files using the apt command][7]
#### 方法 3使用 Synaptic 包管理器删除 deb 应用
另一种方法是使用 [Synaptic 包管理器][8]。在 GNOME 以软件中心的形式创建其图形包管理器之前Synaptic 是 Ubuntu 和许多其他发行版中的默认 GUI 包管理器。
另一种方法是使用 [Synaptic 包管理器][8]。在 GNOME 以软件中心的形式创建其图形包管理器之前Synaptic 是 Ubuntu 和许多其他发行版中的默认 GUI 包管理器。
它仍然是 [Xfce 桌面环境][9]上的推荐工具。
它仍然是 [Xfce 桌面环境][9] 上的推荐工具。
首先安装它:
@ -99,9 +102,9 @@ sudo apt install synaptic
### 对你有帮助吗?
我非常乐意使用 apt 命令删除从 .deb 文件中安装的软件包。但我可以理解,并不是每个人都喜欢使用命令行。
我非常乐意使用 `apt` 命令删除从 .deb 文件中安装的软件包。但我可以理解,并不是每个人都喜欢使用命令行。
在删除从外部 deb 文件安装的应用时,我发现软件中心中缺失。它可以在这里做得更好
在删除从外部 .deb 文件安装的应用时,我发现软件中心中找不到它。软件中心还可以做的更好一些
我希望你现在对删除 deb 包有更好的了解。如果你有任何问题,请告诉我。
@ -112,7 +115,7 @@ via: https://itsfoss.com/uninstall-deb-ubuntu/
作者:[Abhishek Prakash][a]
选题:[lkxed][b]
译者:[geekpi](https://github.com/geekpi)
校对:[校对者ID](https://github.com/校对者ID)
校对:[wxy](https://github.com/wxy)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux中国](https://linux.cn/) 荣誉推出

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@ -3,16 +3,18 @@
[#]: author: "Jim Hall https://opensource.com/users/jim-hall"
[#]: collector: "lkxed"
[#]: translator: "perfiffer"
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
[#]: reviewer: "wxy"
[#]: publisher: "wxy"
[#]: url: "https://linux.cn/article-14886-1.html"
我是如何使用 Linux fmt 命令来格式化文本
======
fmt 命令是一个简单的文本格式化程序。我将在这里展示如何使用它来格式化文本和邮件回复。
当我为项目编写文档时,我经常以纯文本的形式编写自述文件和安装说明。我不需要使用 HTML 或者 Markdown 之类的标记语言来描述项目的功能或如何编译它。但是维护此文档可能会很痛苦。如果我需要在我的 `Readme` 文件中更新一个句子的中间位置,我需要重新格式化文本,这样我就不会在我的其它文本中间出现一个很长或很短的行,否则它会被格式化为 75 列。一些编辑器包含可以自动重新格式化文本以填充段落的功能,但并非所有的编辑器都这样做。这就是 Linux `fmt` 命令的用武之地。
![](https://img.linux.net.cn/data/attachment/album/202208/01/184300zbyfjayeyqa5pmcb.jpg)
> fmt 命令是一个简单的文本格式化程序。我将在这里展示如何使用它来格式化文本和邮件回复。
当我为项目编写文档时,我经常以纯文本的形式编写自述文件和安装说明。我不需要使用 HTML 或者 Markdown 之类的标记语言来描述项目的功能或如何编译它。但是维护这样的文档可能会很痛苦。如果我需要更新我的 `Readme` 文件中的一个句子的中间位置,我需要重新格式化文本,以避免在我的其它文本中间出现一个很长或很短的行,而其它的行的格式是整整齐齐的 75 列。一些编辑器包含可以自动重新格式化文本以填充段落的功能,但并非所有的编辑器都这样做。这就是 Linux `fmt` 命令的用武之地。
### 使用 Linux fmt 命令格式化文本
@ -30,8 +32,7 @@ civilizations. To boldly go
where no one has gone before!
```
在这个实例文件中,每行都有不同的长度,并且它们以一种奇怪的方式被分割。如果你对纯文本文件进行大量更改,你可以会遇到类似的奇怪的换行。要重新格式化此文本,你可以使用 `fmt` 命令将段落的行填充为统一长度:
在这个实例文件中,每行都有不同的长度,并且它们以一种奇怪的方式换行。如果你对纯文本文件进行大量更改,你可以会遇到类似的奇怪的换行。要重新格式化此文本,你可以使用 `fmt` 命令将段落的行填充为统一长度:
```
$ fmt trek.txt
@ -53,9 +54,9 @@ civilizations. To boldly go where no one has gone before!
### 使用 Linux fmt 命令格式化电子邮件回复
参与了一个邮件列表,我们更喜欢纯文本电子邮件。这使得在列表服务器上归档电子邮件变得更加容易。但现实并非每个人都以纯文本形式发送电子邮件。有时候,当我以纯文本形式回复这些电子邮件时,我的电子邮件客户端会将整个段落放在一行中。这使得在电子邮件中“引用”回复变得困难。
加入了一个邮件列表,这里更喜欢纯文本电子邮件,这使得在列表服务器上归档电子邮件变得更加容易。但现实并非每个人都以纯文本形式发送电子邮件。有时候,当我以纯文本形式回复这些电子邮件时,我的电子邮件客户端会将整个段落放在一行中。这使得在电子邮件中“引用”回复变得困难。
这是一个简单的例子。当我以纯文本形式回复电子邮件时,我的电子邮件客户端通过在每行前添加 `>` 字符来”引用“对方的电子邮件。对于一条短消息,可能如下所示:
这是一个简单的例子。当我以纯文本形式回复电子邮件时,我的电子邮件客户端通过在每行前添加 `>` 字符来“引用”对方的电子邮件。对于一条短消息,可能如下所示:
```
> I like the idea of the interim development builds.
@ -78,7 +79,7 @@ $ fmt -p '>' email.txt
> great way to test new changes that everyone can experiment with.
```
`fmt` 命令是一个非常简单的文本格式化程序,但它可以做很多有用的事情,有助于以纯文本形式编写和更新文档。探索其它选项,例如 `-c``--crown-margin` 以匹配段落前两行缩进,例如项目符合列表。还可以尝试使用 `-t` 或者 `--tagged-paragraph` 来保留段落中第一行的缩进,就像缩进的段落一样。`-u` 或 `--uniform-spacing` 选项在单词之间使用一个空格,在句子之间使用两个空格。
`fmt` 命令是一个非常简单的文本格式化程序,但它可以做很多有用的事情,可以帮助以纯文本形式编写和更新文档。要了解其它选项,例如 `-c``--crown-margin` 以匹配段落前两行缩进,例如项目列表。还可以尝试使用 `-t` 或者 `--tagged-paragraph` 来保留段落中第一行的缩进,就像缩进的段落一样。`-u` 或 `--uniform-spacing` 选项在单词之间使用一个空格,在句子之间使用两个空格。
--------------------------------------------------------------------------------
@ -86,8 +87,8 @@ via: https://opensource.com/article/22/7/fmt-trivial-text-formatter
作者:[Jim Hall][a]
选题:[lkxed][b]
译者:[译者ID](https://github.com/perfiffer)
校对:[校对者ID](https://github.com/校对者ID)
译者:[perfiffer](https://github.com/perfiffer)
校对:[wxy](https://github.com/wxy)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux中国](https://linux.cn/) 荣誉推出

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@ -0,0 +1,128 @@
[#]: subject: "The Much Awaited Linux Mint 21 is Released and Available to Download"
[#]: via: "https://news.itsfoss.com/linux-mint-21-release/"
[#]: author: "Rishabh Moharir https://news.itsfoss.com/author/rishabh/"
[#]: collector: "lkxed"
[#]: translator: "wxy"
[#]: reviewer: "wxy"
[#]: publisher: "wxy"
[#]: url: "https://linux.cn/article-14884-1.html"
期待已久的 Linux Mint 21 发布
======
> Linux Mint 终于发布了基于 Ubuntu 22.04 LTS 的 “Vanessa”并带来了很多有用的改进。
![linux mint 21][1]
Linux Mint 是 [最受欢迎的 Linux 发行版之一][2]。它使用 Ubuntu 作为其基础,特别是它基于 [长期支持][3] 的 Ubuntu 版本,以获得长达 5 年的软件支持。
现在,我们有一个新的版本升级,即 **Linux Mint 21 “Vanessa”**,它基于 4 月份最新发布的 [Ubuntu 22.04 LTS 版本][4]。因此,用户可以预期它的安全更新可以支持到 2027 年。
让我们来看看这个版本的亮点。
### Linux Mint 21 Vanessa 的新亮点
![][5]
它采用了稳定的、改进的 [Linux 5.15 LTS 内核][6]Linux Mint 21 带来了一系列新的增加、变化和完善。
#### 现有用户的升级工具
![][7]
现有的 Mint 20.3 用户可以使用新的基于 GUI 的升级工具轻松更新他们的系统。
用户会看到一个需要安装或升级的新软件包的列表,这也包括了对你可能手动添加的第三方 PPA 库的检查。
#### 新的蓝牙管理器
![][8]
Blueman 现在取代了图形界面的 GNOME 蓝牙管理器 Blueberry。
之所以这样做,主要是因为 Blueman 提供了更多的功能和连接选项以及对多种桌面环境的更好支持。此外Blueman 的用户界面与 Linux Mint 完美地融合在一起。
Blueman 包括一些高级选项,可能大多数用户用不到,但它是一个好工具。
#### 新的进程监控托盘图标
![][9]
不管是对于资深用户还是初级用户来说,一个非常有用的功能是引入了一个新的托盘图标,可以监控进程!
这个托盘图标将通知用户是否有任何自动化进程(如更新和系统快照)在后台运行。
当系统变得缓慢时Mint 用户将很容易知道该去哪里找到问题!
#### 增强的缩略图支持
![][10]
以前,一些文件类型没有任何缩略图显示,这样的用户体验不是很好。
为了解决这个问题,这个版本引入了一个新的项目 *xapp-thumbnails*,并为包括 AppImage、ePub、MP3、RAW 图片和 WebP 在内的文件类型带来了缩略图支持。
#### XApp 的改进
以前的 Timeshift 备份工具现在成为了一个 XApp并由 Mint 团队正式维护。此外,在 rsync 模式下,如果快照导致磁盘上的可用空间少于 1GB则会计算出下一次快照所需的空间并跳过下一次快照。
Xviewer、Warpinator、Thingy 和 WebApp 管理器也有了其他改进。
#### Cinnamon 5.4.2
Linux Mint 的旗舰桌面环境 Cinnamon 得到了良好的内部升级。
默认的窗口管理器 Muffin 现在重新基于较新的 Mutter 3.36 代码库开发。
窗口 UI 也有一些细微的改进,包括主题和动画。
![][11]
### 其他增加的功能和改进
其他一些变化包括:
* 改进了对 AppImage 的支持,这与 Ubuntu 22.04 不同
* 目录中出现了一组新的漂亮的壁纸
你可以在我们专门的 [Linux Mint 21 功能][12] 文章中探索更多关于它的新亮点。
### 获取 Linux Mint 21
如果你正在使用 Mint 20.3,你应该能在几天内升级到 Mint 21。图形化的更新过程应该会在几天后出现。
你可以选择从 Linux Mint 的下载页面下载 ISO进行全新安装。
> **[获取 Linux Mint 21][13]**
如果你的网络速度慢或不稳定,你也可以 [用这个种子链接][14]。
享受新鲜的 Mint 吧 🙂
--------------------------------------------------------------------------------
via: https://news.itsfoss.com/linux-mint-21-release/
作者:[Rishabh Moharir][a]
选题:[lkxed][b]
译者:[wxy](https://github.com/wxy)
校对:[wxy](https://github.com/wxy)
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://news.itsfoss.com/author/rishabh/
[b]: https://github.com/lkxed
[1]: https://news.itsfoss.com/wp-content/uploads/2022/07/linux-mint-21-release.jpg
[2]: https://itsfoss.com/best-linux-distributions/
[3]: https://itsfoss.com/long-term-support-lts/
[4]: https://news.itsfoss.com/ubuntu-22-04-release/
[5]: https://news.itsfoss.com/wp-content/uploads/2022/07/linux-mint-21-new.jpg
[6]: https://news.itsfoss.com/linux-kernel-5-15-release/
[7]: https://news.itsfoss.com/wp-content/uploads/2022/07/upgradetool.webp
[8]: https://news.itsfoss.com/wp-content/uploads/2022/07/blueman.png
[9]: https://news.itsfoss.com/wp-content/uploads/2022/07/monitor.png
[10]: https://news.itsfoss.com/wp-content/uploads/2022/07/thumbnails.png
[11]: https://news.itsfoss.com/wp-content/uploads/2022/07/animations.png
[12]: https://itsfoss.com/linux-mint-21-features/
[13]: https://linuxmint.com/download.php
[14]: https://linuxmint.com/torrents/

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@ -1,127 +0,0 @@
[#]: subject: "The Much Awaited Linux Mint 21 is Released and Available to Download"
[#]: via: "https://news.itsfoss.com/linux-mint-21-release/"
[#]: author: "Rishabh Moharir https://news.itsfoss.com/author/rishabh/"
[#]: collector: "lkxed"
[#]: translator: " "
[#]: reviewer: " "
[#]: publisher: " "
[#]: url: " "
The Much Awaited Linux Mint 21 is Released and Available to Download
======
Linux Mint finally shifts its base to Ubuntu 22.04 LTS with “Vanessa” and includes a lot of helpful upgrades.
![linux mint 21][1]
Linux Mint is [one of the most popular Linux distros][2] out there. Moreover, it uses Ubuntu as its base and particularly the [Long Term Support][3] releases for up to 5 years of software support.
Now, we have a new version upgrade, i.e. **Linux Mint 21 “Vanessa”** based on the latest [Ubuntu 22.04 LTS release][4], which was released in April. Thus, users can expect security updates until 2027.
Lets take a look at the highlights of this release.
### Linux Mint 21 Vanessa: Whats New?
![linux mint][5]
Along with the stable and improved [Linux 5.15 LTS kernel][6], Linux Mint 21 brings in a host of new additions, changes, and refinements.
#### Upgrade Tool for Existing Users
![Source: Linux Mint][7]
Existing Mint 20.3 users can easily update their system using the new GUI-based upgrade tool.
Users will be shown a list of new packages to be installed/upgraded. This also includes a check for third-party PPA repositories which you may have added manually.
#### New Bluetooth Manager
![Source: Linux Mint][8]
Blueman will now replace the GUI for GNOME Bluetooth manager i.e Blueberry.
The switch was done basically because Blueman simply offered more features, connectivity options, and better support for multiple desktop environments. Moreover, Bluemans UI blends in perfectly well with Linux Mint.
Blueman includes some advanced options that may be irrelevant to most users, but it is a good tool.
#### New Process Monitor Tray icon
![linux mint][9]
A very useful feature for both power and basic users is the introduction of a new tray icon that monitors processes!
The tray icon will notify users if any automated processes like updates and system snapshots are running in the background.
Mint users will easily know where to look whenever their system gets slow!
#### Enhanced Thumbnail Support
![Source: Linux Mint][10]
Previously, some file types did not have any thumbnails displayed. This wasnt great for the user experience.
To address it, this release introduces a new project *xapp-thumbnails*, and brings thumbnail support for file types that include AppImage, ePub, MP3, RAW pictures, and WebP.
#### XApp Improvements
The ever-present Timeshift, the backup utility, is now a XApp and is officially maintained by the Mint team. In addition, the required space for the next snapshot is calculated and skipped if the snapshot leads to less than 1GB of free space on the disk in rsync mode.
Other improvements were also made to Xviewer, Warpinator, Thingy, and WebApp manager.
#### Cinnamon 5.4.2
Linux Mints flagship desktop environment—Cinnamon—has received good under-the-hood upgrades.
The default windows manager, Muffin, is now re-based on the newer Mutter 3.36 codebase.
There were also subtle improvements to the window UI, including theming and animations.
![Source: Linux Mint][11]
### Other Feature Additions and Improvements
Some other changes include:
* Improved support for AppImage, unlike Ubuntu 22.04
* A new set of beautiful wallpapers in the catalog.
You can explore more about its new highlights in our dedicated [Linux Mint 21 features][12] article.
### Getting Linux Mint 21
If you are using Mint 20.3, you should be able to upgrade to Mint 21 in a few days. A graphical update process should be revealed in a few days.
You can opt for a fresh installation of Linux Mint by grabbing the ISO from its download page.
[Get Linux Mint 21][13]
You can also [get torrent links][14] if you have slow or inconsistent internet.
Enjoy fresh Mint 🙂
--------------------------------------------------------------------------------
via: https://news.itsfoss.com/linux-mint-21-release/
作者:[Rishabh Moharir][a]
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[a]: https://news.itsfoss.com/author/rishabh/
[b]: https://github.com/lkxed
[1]: https://news.itsfoss.com/wp-content/uploads/2022/07/linux-mint-21-release.jpg
[2]: https://itsfoss.com/best-linux-distributions/
[3]: https://itsfoss.com/long-term-support-lts/
[4]: https://news.itsfoss.com/ubuntu-22-04-release/
[5]: https://news.itsfoss.com/wp-content/uploads/2022/07/linux-mint-21-new.jpg
[6]: https://news.itsfoss.com/linux-kernel-5-15-release/
[7]: https://news.itsfoss.com/wp-content/uploads/2022/07/upgradetool.webp
[8]: https://news.itsfoss.com/wp-content/uploads/2022/07/blueman.png
[9]: https://news.itsfoss.com/wp-content/uploads/2022/07/monitor.png
[10]: https://news.itsfoss.com/wp-content/uploads/2022/07/thumbnails.png
[11]: https://news.itsfoss.com/wp-content/uploads/2022/07/animations.png
[12]: https://itsfoss.com/linux-mint-21-features/
[13]: https://linuxmint.com/download.php
[14]: https://linuxmint.com/torrents/

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[#]: subject: "Top 10 Features of Linux Mint 21 “Vanessa”"
[#]: via: "https://www.debugpoint.com/linux-mint-21-features/"
[#]: author: "Arindam https://www.debugpoint.com/author/admin1/"
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Top 10 Features of Linux Mint 21 “Vanessa”
======
We round up the top features of the upcoming Linux Mint 21 “Vanessa”. Find out whats in store for you.
![][0]
![Linux Mint 21 Cinnamon Desktop][1]
Linux Mint 21 “Vanessa” is the 36th release of [Linux Mint][2], which carries a good list of features along with several usability improvements across the desktop. The features are scattered across the Cinnamon desktop, core changes, Xapps updates and more.
I have summarized all of them in this list of top features of Linux Mint 21.
### Top Features of Linux Mint 21 “Vanessa”
#### 1. Ubuntu 22.04 and associated updates
Perhaps the most crucial change is the base of Linux Mint 21, which is now based upon [Ubuntu 22.04 “Jammy Jellyfish”][3]. The last major release, i.e. Linux Mint 20 “Ulyana”, was based on Ubuntu 20.04 “Focal Fossa”, when released four years back. The state of the world in 2020 was utterly different, considering everything going on.
Hence, a lot of packages, version upgrades, and new performance improvements all these under-the-hood updates come to Linux Mint 21. That includes the latest LTS [Linux Kernel 5.15][4], which brings further hardware lineup support, and toolchain updates for programming, development and networking.
#### 2. Major changes in the Timeshift backup tool
A few months back, the Mint team [announced][5] that they are taking over developing the popular backup tool Timeshift and continuing its development as a “XApps”. So, this is a significant change. Why, may you ask?
Well, the developer of the Timeshift tool, Tony George, is busy with other projects. You may have heard about “[TeeJeeTech][6]” apps for Linux. It was created by Tony and had some cool apps. However, he doesnt have the time to concentrate on Timeshift development and enhancement.
![Timeshift creating snapshot][7]
With that said, since Linux Mint now maintains it, some new features land in this release, such as Timeshift now determining how much disk space you need for the next backup in rsync mode (not in btrfs mode). In addition, it stops the backup process if it seems the disk space is less than 1 GB after the backup.
#### 3. WebP Support
WebP image is a reasonably new image format created by Google for the web. It brings better compression and reduced size while maintaining good quality to traditional JPEG or PNG images.
WebP support (view images, thumbnail or edit) in Linux Desktop requires some [additional installation][8] of packages. Looking at the popularity Linux Mint team brings out-of-the-box WebP support across the desktop apps and flavours.
That means Nemo file manager can show thumbnails of WebP images and view them in xviewer. The mint team always thinks about the end-user first because other distros are still behind on supporting WebP by default, such as Ubuntu. Not only that, the new app [xapp-thumbnailers][9] now helps Nemo file manager to preview additional file types as well:
* ePub
* MP3 with Album Arts
* RAW Images
* AppImage
#### 4. Process Monitor
A small but handy process monitor tool will give you a heads-up on whats happening in your system. This little icon at the system tray shows up when your system is undergoing automatic updates or backup by TImeshift. Your system may become slow in those situations, and this nifty icon can show you why.
#### 5. Improved printing support
Linux Mint is well equipped for devices, and the printer supports it by default. This edition of Mint brings [Internet Printing Protocol (IPP)][10] for driverless printing and scanning.
In addition, HPs driver, HPLIPs latest edition (3.21.12), is also installed by default.
All these changes streamline printer and scanner usage. And users like you can enjoy effortless printing and scanning. It is such an essential aspect of a Linux distro, but it doesnt work all the time. While [reviewing many distros][11], I found many fails to detect the printers or even print.
Its good to see that the mint team contributed to this critical functionality.
#### 6. Window Animation updates
There are some considerable changes come in the Window and desktop animation effects. Firstly, the Effects settings for Windows and desktop are merged now. Earlier, separate sections gave more granular control of the animations.
Heres a side-by-side view.
![][12]
![][13]
Secondly, the mapping windows and desktop effects options are removed.
Third, a new control changes the animation speed from slower to faster.
Finally, a global switch to disable or enable all the animation on the entire desktop gives you the option for more control.
I believe this is a well-designed dialog and advanced options for better clarity.
#### 7. Mutter rebase
Lets talk about [Cinnamon desktop version 5.4][14], which comes with Linux Mint 21. Its the latest Cinnamon release, and Mint is the first distro to bring it to the user (other than traditional Arch Linux folks, who got it [a little early][15]).
Finally, the team completed the rebase of Mutter into its window manager, Muffin in Cinnamon 5.4. Since Muffin was initially forked from Mutter, it was always lagging behind the upstream Mutter features, despite the backporting of changes. A significant amount of effort went to feature inclusion, bug fixes & clean up to make Muffin as close to the Mutter code base.
Hence, in the future, it is now easier to port back changes from Mutter upstream and clean things in Muffin as needed.
#### 8. Window manager and GTK Themes
With the changes in Muffin, the team also moved some of the display settings from gnome-control-center to cinnamon-control-center. In addition, the display configs from csd-xrandr moved into the Muffin window manager in Cinnamon 5.4. Apparently, you may not see any difference in the Display settings window. However, you may see some performance boost and fewer bugs or issues while scaling displays or in high-res windows.
Another critical change that the Mint team introduced via CInnamon 5.4 is the uniform render of GTK dialogs in apps. Earlier, if a GTK app used a header bar, then the dialog was a mix of CSD (client side decoration) and GTK themes.
Now with Cinnamon 5.4, all the windows are rendered using the GTK theme irrespective of their design. And with that, the legacy Metacity themes also dropped.
On a side note, I loved the Metacity, and its “legacy look” when [they were a thing][16] in the early days of GNOME.
#### 9. Package Management updates
Following the trends of Debian, KDE Plasma desktop, Linux Mint also protects your system from uninstalling critical dependent packages.
When you try to uninstall, Mint now checks the dependencies and whether critical desktop packages will be removed.
If found, you get an error message that stops you from going further.
On the other hand, when you successfully uninstall a package, it cleans up all the dependencies with it installed.
#### 10. Disable the Systemd OOMD (out-of-memory daemon) service
The “systemd-oomd” had some bad feedback recently since the Ubuntu 22.04 LTS release. Users across the web [reported][17] the sudden closing of applications (such as Firefox) without any warning or user intervention. Further investigation pointed to the “not so well” implementation of the systemd-oomd service.
In theory, the [systemd-oomd.service][18] monitors your system for out-of-memory situations, and it has the authority to kill any processes which consume more system resources. Ubuntu team did not communicate this with importance, which eventually led to an unpleasant user experience.
With that knowledge, Linux Mint 21 decides [not to feature][19] this service and disables it. Because the user base of Linux Mint is general users, students, etc., it would be a bad experience for users if apps closed unexpectedly.
![Systemd OOMD service is not enabled][20]
#### 11. Other Changes
Finally, lets round up some tiny yet impactful changes to wrap up the Linux Mint 21 features.
* The default document reader app Xreader is now capable of minor annotation. This is a handy feature.
* The WebApp manager now brings custom browser parameters.
* Warpinator file transfer utility now shows you other sources on Windows, Android and iOS devices.
* Mint packages Firefox web browser as deb and not the Snap version, which defaults in Ubuntu 22.04 LTS. Thanks to the Mint team, users need not worry about the [complex set of commands][21] to remove the Firefox Snap from Jammy.
![Firefox 102 in Linux Mint 21 Exclusively packaged as deb executable][22]
* The bulk renamer app Thingy gets some UI improvements.
* The os-prober of GRUB2 is now available to detect all the operating systems in your hardware (handy for dual boot or more systems).
* The Bluetooth manager Blueman replaces Blueberry, bringing additional features for connecting and managing your Bluetooth devices.
* Finally, new wallpapers for your new desktop arrive in this release.
![New Wallpapers in Linux Mint 21][23]
### Things that are NOT changing
From a very high level, you might feel that most of the Linux Mint 21 remains the same as its predecessors. The default desktop looks and default wallpaper remains the same. Xfce and MATE desktop didnt have any major releases. Hence they are precisely the same. In addition, the default icon theme, application menu, etc., may give you a similar feel to the entire desktop.
### Wrapping Up
Overall, a good set of features benefitting end users rather than being fancy gestures and stuff. For this very fact, Linux Mint is the best Linux distro today for beginners or end users. So, that concludes the feature highlights of Linux Mint 21.
You can download/update Linux Mint 21 from the [official website][24]. Also, stay tuned for our detailed distro review of Linux Mint 21 soon.
What do you think about the new features of Linux mint 21? Is there any feature you expected but didnt arrive in this release? Lets discuss this in the comment box below.
--------------------------------------------------------------------------------
via: https://www.debugpoint.com/linux-mint-21-features/
作者:[Arindam][a]
选题:[lkxed][b]
译者:[译者ID](https://github.com/译者ID)
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[a]: https://www.debugpoint.com/author/admin1/
[b]: https://github.com/lkxed
[0]: https://www.debugpoint.com/wp-content/uploads/2022/07/mint21feature.jpg
[1]: https://www.debugpoint.com/wp-content/uploads/2022/07/Linux-Mint-21-Cinnamon-Desktop.jpg
[2]: https://www.debugpoint.com/linux-mint/
[3]: https://www.debugpoint.com/web-stories/ubuntu-22-04-review/
[4]: https://www.debugpoint.com/linux-kernel-5-15/
[5]: https://blog.linuxmint.com/?p=4323
[6]: https://teejeetech.com/
[7]: https://www.debugpoint.com/wp-content/uploads/2022/07/Timeshift-creating-snapshot.jpg
[8]: https://www.debugpoint.com/view-webp-ubuntu-linux/
[9]: https://github.com/linuxmint/xapp-thumbnailers
[10]: https://datatracker.ietf.org/doc/html/rfc8011
[11]: https://www.debugpoint.com/tag/linux-distro-review/
[12]: https://www.debugpoint.com/wp-content/uploads/2022/07/Effects-in-Linux-Mint-20.jpg
[13]: https://www.debugpoint.com/wp-content/uploads/2022/07/Effects-in-Linux-Mint-21.jpg
[14]: https://github.com/linuxmint/cinnamon-desktop/releases/tag/5.4.0
[15]: https://www.debugpoint.com/cinnamon-arch-linux-install/
[16]: https://www.debugpoint.com/gnome-classic-ubuntu-22-04/
[17]: https://askubuntu.com/questions/1404888/how-do-i-disable-the-systemd-oom-process-killer-in-ubuntu-22-04
[18]: https://www.freedesktop.org/software/systemd/man/systemd-oomd.service.html
[19]: https://debugpointnews.com/linux-mint-21-systemd-oom/
[20]: https://www.debugpoint.com/wp-content/uploads/2022/07/Systemd-OOMD-service-is-not-enabled.jpg
[21]: https://www.debugpoint.com/remove-firefox-snap-ubuntu/
[22]: https://www.debugpoint.com/wp-content/uploads/2022/07/Firefox-102-in-Linux-Mint-21-Exclusively-packaged-as-deb-executable.jpg
[23]: https://www.debugpoint.com/wp-content/uploads/2022/07/New-Wallpapers-in-Linux-Mint-21.jpg
[24]: https://www.linuxmint.com/download.php