Merge pull request #26521 from lkxed/20220720-Update-a-Single-Package-With-apt-Command-in-Ubuntu-and-Debian

[手动选题][tech]: 20220720 Update a Single Package With apt Command in Ubuntu and Debian.md

sources/tech/20220720 Update a Single Package With apt Command in Ubuntu and Debian.md

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+[#]: subject: "Update a Single Package With apt Command in Ubuntu and Debian"
+[#]: via: "https://itsfoss.com/apt-upgrade-single-package/"
+[#]: author: "Abhishek Prakash https://itsfoss.com/"
+[#]: collector: "lkxed"
+[#]: translator: " "
+[#]: reviewer: " "
+[#]: publisher: " "
+[#]: url: " "
+
+Update a Single Package With apt Command in Ubuntu and Debian
+======
+
+How do you [update your Ubuntu system in the command line][1]? You use the apt update (to refresh the package cache) and apt upgrade commands.
+
+```
+sudo apt update && sudo apt upgrade
+```
+
+It updates all the installed apt packages that can be upgraded at once. This includes the Linux kernel version, too.
+
+This seems like a good thing, especially for desktop users. That may not be the case for Ubuntu server users where you have crucial web services running.
+
+If you want to be selective about the updates and **only want to upgrade a single package**, use this command:
+
+```
+sudo apt install --only-upgrade package_name
+```
+
+Let’s see it in a bit more detail.
+
+### Upgrade single package using apt command
+
+The first step is to update the local package repository cache so that your system knows about the availability of new package versions.
+
+```
+sudo apt update
+```
+
+**This is optional**. Check if the package you want to upgrade is in the [list of upgradable packages][2].
+
+```
+apt list --upgradable
+```
+
+If the desired package has a new version available, you can choose to upgrade only this single package with this command:
+
+```
+sudo apt install --only-upgrade package_name
+```
+
+If you run the apt install command on an already installed package, it will be upgraded to the next available version.
+
+But if the package is not installed already, the apt command will also install it.
+
+This is why the `--only-upgrade` part is necessary. With that option, the apt command will only upgrade an already installed package. It will not install the package if it is not already installed.
+
+Not the best-suited example for Ubuntu server users, but you can still see how I upgraded only one of the seven upgradable packages in the below screenshot.
+
+![Update only a single package in Ubuntu][3]
+
+### Upgrade selected packages only
+
+If you want to upgrade a selected few packages, you don’t have to update them one by one. Just provide the package names with the command mentioned earlier.
+
+```
+sudo apt install --only-upgrade package1 package2 package3
+```
+
+Here’s an example.
+
+![Upgrade selected packages in Ubuntu][4]
+
+### Conclusion
+
+When you are faced with a situation where you have to upgrade selected packages, you can use the apt install command with –only-upgrade option.
+
+I recommend reading on [using apt command to use it more effectively][5].
+
+--------------------------------------------------------------------------------
+
+via: https://itsfoss.com/apt-upgrade-single-package/
+
+作者：[Abhishek Prakash][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://itsfoss.com/
+[b]: https://github.com/lkxed
+[1]: https://itsfoss.com/update-ubuntu/
+[2]: https://itsfoss.com/apt-list-upgradable/
+[3]: https://itsfoss.com/wp-content/uploads/2022/07/update-single-package-ubuntu-scaled.webp
+[4]: https://itsfoss.com/wp-content/uploads/2022/07/upgrade-selected-packages-ubuntu.png
+[5]: https://itsfoss.com/apt-command-guide/