There are various types of Linux distributions to choose from nowadays, choosing one is a major concern in the Linux world. Taking in consideration easy to use OSs, the top dogs in this category are:
* [Ubuntu](https://www.ubuntu.com/) - Derivative of the stable Debian system, Ubuntu thrives in the a easy to use and up to date environment.
* [Mint](https://linuxmint.com/) - Based on Ubuntu and Debian, this OS has great features like Ubuntu's PPA compatibility, the apt package manager. The base mint distribution remind of Windows, this can be a nice characteristic for users comming from Windows.
* [Trisquel](https://trisquel.info/) - A distribution derived from Ubuntu that focuses on only utilizing fully free software, avoiding proprietary software. Trisquel is endorsed by the Free Software Foundation (FSF).
Some other choices include:
* [CentOS](https://www.centos.org/) - Based off of Red Hat Enterprise Linux. Community supported and stable.
* [Fedora](https://getfedora.org/) - Created by the Red Hat company to run newer packages than the stable enterprise releases. Community supported.
* [Debian](https://www.debian.org/) - Created with completely free software. Many popular, "easy to use" derivatives are based off of Debian.
* [Arch](https://www.archlinux.org/) - An extremely customizable distribution. Not recommended for beginners.
One important step to look out for is when deciding where to install your new Linux distro. For first users it's better to choose a "Guided" option as it will do all the work for you.
In Debian/Ubuntu and derivatives, the shortcut to open the cli (Comman Line Interface) is "Ctrl + Alt + T". Let's open the terminal and try some commands.
cd (Change Directory) - The cd command is one of the commands you will use the most at the command line in linux. It allows you to change your working directory. You use it to move around within the hierarchy of your file system.
```unix
cd
```
Using the cd command alone will change the current directory to your user home directory, located in "/home/username" as in "/home/mark".
ls (List) - This command list the content in the current directory. It can be also used to list file information.