Sultan Zavrak is an Assistant Professor in the Department of Computer Engineering at Duzce University, Turkey. He received his B.Sc. (2010) and M.Sc. (2013) degrees in Computer Engineering from Karadeniz Technical University, Trabzon, and his Ph.D. in Computer and Information Engineering from Sakarya University in 2020.

Dr. Zavrak’s research interests span computer networks, network security, and machine learning, with a strong focus on automation and real-world systems. His passion for teaching and tooling-driven workflows led him to develop this comprehensive guide, making POSIX shell scripting approachable for beginners while preserving technical rigor and industry best practices.

With more than a decade of experience in academic research, he offers a perspective that bridges theoretical computer science with the everyday automation challenges faced by engineers and practitioners.