Introduction to 'apt get update upgrade linux - Shell-Bash'

As a programmer, it is crucial to keep your system up-to-date with the latest updates and security patches. One way to achieve this is through the use of the 'apt-get' command in Linux shell Bash.

What is apt-get?

'apt-get' is a package manager utility used in Debian-based Linux distributions like Ubuntu, Debian, Kali Linux, among others. It is used to install, remove, and upgrade software packages. The 'apt' command is a newer and slightly improved version of 'apt-get,' but 'apt-get' is still widely used and supported.

What does 'update' do?

The 'update' command retrieves the latest package lists from the server and updates the local package list cache. This is essential to ensure that the system is aware of the latest packages that are available.

What does 'upgrade' do?

'upgrade' command allows the user to upgrade all packages on the system to their latest versions. It works by comparing the versions of installed packages with those available on the server and updating the packages if there is a newer version available.

How to use 'apt-get update upgrade' command

To update and upgrade a Linux system using 'apt-get,' open a terminal window and run the following command:

sudo apt-get update
sudo apt-get upgrade

The 'sudo' command gives you administrative privileges required for installing, updating, or removing packages.

Conclusion

In summary, 'apt-get update upgrade' is an essential command every Linux user and programmer should know. It helps keep the system up-to-date with the latest security patches and updates, ensuring that the system is secure and functional. With the knowledge provided in this article, you are now better equipped to use this command to maintain your system.