Being a part of the open source eco-system, Linux distros have had the advantage of regular upgrades something that is in an instant attention grabber.
1.Debian
Debian is an operating system composed of free software mostly carrying the GNU General Public License. Debian systems can use either the Linux kernel (known as the Debian GNU/Linux distribution), the FreeBSD kernel (known as the Debian GNU/kFreeBSD distribution) or, more recently, the GNU Hurd kernel (more precisely, the GNU Mach microkernel and its servers; known as the Debian GNU/Hurd distribution). Debian GNU/Linux is one of the most popular Linux distributions for personal computers and network servers.
Target Users: System Administrators and Advanced users.
2.Gentoo
Gentoo Linux is a computer operating system based on the Linux kernel and built using the Portage package management system. It is distributed as free and open source software. Gentoo package management is designed to be modular, portable, easy to maintain, and flexible.
Target Users: For those who already know their way in Linux
3.Ubuntu
Ubuntu is a Debian-based Linux operating system, with Unity as its default desktop environment (GNOME was the previous desktop environment). The Ubuntu project is publicly committed to the principles of open source development; people are encouraged to use free software, study how it works, improve upon it, and distribute it.
Target Users: Newbies
4.Red Hat Enterprise Linux
Red Hat Enterprise Linux (RHEL) is a Linux distribution developed by Red Hat and targeted toward the commercial market. Red Hat Enterprise Linux is released in server versions for x86, x86-64, Itanium, PowerPC and IBM System z, and desktop versions for x86 and x86-64.
Target Users: System administrators
5.CentOS
CentOS is a Linux distribution that attempts to provide a free enterprise class computing platform which has 100 per cent binary compatibility with its upstream source, Red Hat Enterprise Linux (RHEL).
Target Users: Anyone who wants to test the working of server on Desktop
6.Fedora
Fedora is an operating system based on the Linux kernel, developed by the community-supported Fedora Project and owned by Red Hat. Fedora contains software distributed under a free and open source license and aims to be on the leading edge of such technologies.
Target Users: For those who want to taste bleeding-edge technology and can’t wait for the program to get stable
7.Kali Linux
Kali Linux is a Debian-derived Linux distribution designed for digital forensics and penetration testing. Kali Linux is preinstalled with numerous penetration-testing programs, including nmap (a port scanner), Wireshark (a packet analyser), John the Ripper (a password cracker), and Aircrack-ng (a software suite for penetration-testing wireless LANs).
Target Users: For penetration testers or ethical hackers
8.Arch Linux
Arch Linux is a Linux-based operating system for i686 and x86-64 computers. It is composed predominantly of free and open source software, and supports community involvement. The design approach of the development team focuses on elegance, code correctness, minimalism, and simplicity, and expects the user to be willing to make some effort to understand the system's operation.
Target Users: geeky distro
9.OpenSuse
openSUSE is a general purpose operating system built on top of the Linux kernel, developed by the community-supported openSUSE Project and sponsored by SUSE and a number of other companies. It comes in several editions for the x86 and x86-64 architectures.
Target Users: System Administrators