The management and operation of Linux-based computer systems is known as Linux systems administration. It entails installing, configuring, maintaining, monitoring, and troubleshooting numerous hardware and software components, as well as ensuring system security and availability.

A Linux systems administrator is someone in charge of ensuring that the systems run efficiently and reliably to satisfy the organization's or individual users' needs.

A combination of technical knowledge, practical experience, and soft skills is required to become a Linux systems administrator. As a newbie, here are some steps you can take to begin your journey toward becoming a Linux systems administrator:

1. Learn Linux fundamentals: Begin by learning the fundamentals of Linux, such as the command line interface, file system navigation and permission, and basic administration tasks.
2. Practice, practice, practice: The best way to become a proficient Linux systems administrator is to put what you've learned into practice. As a beginner, you can install a Linux distribution on your computer using VirtualBox and do basic administrative tasks.
3. Join a community: See if there is a Linux community in your area or at a nearby institution that you may join. You can also network with other Linux users by participating in online forums and social media groups.
4. Get certified: To demonstrate your competence and boost your career prospects, consider acquiring a Linux certification such as the Linux Foundation Certified Systems Administrator (LFCSA), CompTIA Linux+, RedHat Certified Systems Administrator (RHCSA), or Linux Professional Institute (LPIC).
5. Develop soft skills: Communication, problem-solving, and teamwork are all examples of soft skills that any IT professional should have. As a Linux systems administrator, you will be collaborating with other IT experts and end users, therefore excellent communication and interpersonal skills are essential.
6. Apply for entry-level positions: Apply for entry-level Linux systems administration positions to gain practical experience and start building your career.

Overall, any organization that uses Linux-based systems must have a Linux systems administrator. They ensure that the system is operationally sound, secure, and up to date, hence reducing downtime and ensuring that the organization's operations run smoothly.