this post was submitted on 28 Dec 2024
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Linux
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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If your package manager is apt, you can get a list of all the packages you have installed with
There's also a command to automatically reinstall all your apps from the list, I don't remember offhand, but I usually just do them manually from Synaptic.
As other commenters have said, some people keep their /home on a different partition so you can reinstall or install a different distro without losing all your configurations (always back it up first anyway of course). But another thing I've done a lot is just have a different disk or partition with all my data files on it (called 'data' of course :p ), and I put a link to it in my home directory. So when I reinstall the OS I do have to backup my home dir and then copy it over to the new install home dir, but it's small and just has my dotfiles and things.
Also on the data partition I have a backup subfolder where I keep a copy of any system config files that I've edited (usually found in /etc/), such as my pulseaudio config, so I can restore those.
And you can always try out different distros in a virtual machine or with a live USB before making the commitment of installing one on your hardware.