Table of Contents
Why is apt-get update needed?
apt-get update updates the package lists. It is essential before upgrading the installed packages, because the system cannot know whether the repo has a new version of a package, unless it has an up-to-date copy of the package list.
Is apt-get update safe?
When you run apt-get upgrade it updates all installed packages on your system. It is perfectly safe (unless you cut it off before it finishes) as all packages are from the repos (you should only install one’s you trust) and are (probably) well tested before uploading.
Should I use apt update or apt-get update?
Both these commands are used to download and update the package information from all of the configured sources, the difference is “apt-get” is old, more useful in scripts while the “apt” is newer and more useful in the command line interface.
Should I update Ubuntu?
You benefit from getting the latest software, including new security patches, and all the upgraded technology that comes with a new release without having to resort to reinstalling and reconfiguring your system. Best of all, upgrading Ubuntu to the latest release is easy.
What is the difference between apt update and upgrade?
apt-get update updates the list of available packages and their versions, but it does not install or upgrade any packages. apt-get upgrade actually installs newer versions of the packages you have. After updating the lists, the package manager knows about available updates for the software you have installed.
Why do people still use apt-get?
The main aim of apt is to provide an efficient way of handling package in a way “pleasant for end users”. When Debian says “pleasant for end users”, it actually means that. You can achieve the same with apt-get as well if you use additional command options. apt enables them by default and takes the pain away.
When should I run apt-get update?
You need to run apt-get update once before installing new packages as this updates the local repository information. If you are going to install multiple packages shortly after each other, you do not need to run apt-get update before each install; just once before the first install.
How can I update Ubuntu without losing data?
If you choose to upgrade your Ubuntu version, you cannot downgrade it. You cannot go back to Ubuntu 18.04 or 19.10 without reinstalling it. And if you do that, you’ll have to format the disk/partition. It is always a good idea to make a backup of your data before performing a major upgrade like this.
What is the difference between APT and apt-get?
The apt tool merges functionalities of apt-get and apt-cache
What is apt autoremove?
The autoremove is used to remove packages that were automatically installed to satisfy dependencies for other packages and are now no longer needed as dependencies changed or the package(s) needing them were removed in the meantime. To do so you run the apt command or apt-get command as follows: $ sudo apt autoremove.
What does sudo apt-get update command do?
What does sudo apt-get update command do? The sudo apt-get update command is used to download package information from all configured sources. The sources often defined in /etc/apt/sources.list file and other files located in /etc/apt/sources.list.d/ directory. So when you run update command, it downloads the package information from the Internet.
What is sudo apt update?
Running sudo apt-get update (or sudo aptitude update) updates this on your local system. This is the step that actually retrieves information about what packages can be installed, including what updates to currently installed packages packages are available, from Internet sources.