How to Update CentOS, AlmaLinux, Rocky Linux, Ubuntu and Debian Systems

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On CentOS

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Perform the system update and then apply system modifications by restarting the system:

yum update

To reboot the system,

reboot

On AlmaLinux or Rocky Linux

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The distribution is similar to CentOS and the yum package manager will work, but you can use the following command to update the system:

dnf update

Reboot the system using the below command,

reboot

On Ubuntu or Debian

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Update the list of packages which can be updated:

apt-get update

Then, install updates and apply them by restarting the system:

apt-get dist-upgrade

To reboot the system,

reboot