Arguably, all linux distro has a function of updating but many distributions mostly use a different command.
Examples
1) ubuntu used apt command taken directly from Debian.
2) centos and fedora used yum command.
3) and etc.
Meanwhile openSUSE used zypper command to manage the installation, updating and even uninstall software.
YaST can also be used if you loved the GUI.
But here I want to highlight how the use of zypper through the terminal (command line).
First: Open the terminal to go to the opensuse (logo)> System> Xfce Terminal
After that, fire up the command sudo zypper up for updating any outdated software and security updates.
Sudo command is for the administrator privilege. Therefore, please enter your administrator password.
If there are any updates available, you will be asked to updating with (y / n).
Select y and press enter will do it.
Updating and downloading speed is depend on your internet connections.
If there are no updates available, the image are look like below.
Just ignore any message there as there are shown Nothing to do.
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