How to upgrade OpenSUSE 15.3 to 15.4 using the CLI

Upgrading to a new version of OpenSUSE from the command line involves the following steps: Make sure your system is up-to-date: Before you begin the upgrade process, you should ensure that your system is fully up-to-date by running the command zypper update. This will update any existing packages to the latest version. Backup your data: … Read more

How to see Raspberry Pi OS version on Raspberry PI

You can check the version of Raspberry Pi OS (formerly Raspbian) that is currently installed on your Raspberry Pi by using the command cat /etc/os-release. This command will display a file called os-release, which contains information about the operating system, including the version number. Alternatively, you can use the command lsb_release -a, this command will … Read more

How to convert video to GIF in Linux using ffmpeg CLI

FFmpeg is a command-line tool that can be used to convert video files to GIFs on Linux. Here’s an example command that shows how to convert a video file called “input.mp4” to a GIF called “output.gif”: ffmpeg -i input.mp4 -vf “fps=15,scale=320:-1:flags=lanczos,split[s0][s1];[s0]palettegen[p];[s1][p]paletteuse” output.gif This command does the following: -i input.mp4 specifies the input video file -vf … Read more

How to hide Nginx version on Linux and Unix

To hide the Nginx version on Linux and Unix systems, you can edit the Nginx configuration file (usually located at /etc/nginx/nginx.conf) and add the following line in the main context: server_tokens off; This will prevent Nginx from including the version number in the Server HTTP response header. You can also add the line server_tokens off; … Read more