This comprehensive study guide delivers 100% coverage of every topic on the challenging CompTIA Linux+ exam Get complete coverage of all the objectives included on CompTIA Linux+ exam XK0-004 from this up-to-date resource. Written by Linux experts and technology trainers, the book provides learning objectives at the beginning of each chapter, exam tips, practice exam questions, and in-depth answer explanations. Designed to help you pass these challenging exams, this definitive volume also serves as an essential on-the-job reference. Covers all exam topics, including how to: • Use the vi text editor • Work with the Linux shell • Manage Linux users, groups, files, and directories • Administer ownership, permissions, and quotas • Install Linux and manage the boot process • Configure the graphical environment • Manage software and hardware • Write shell scripts • Manage network settings and services • Secure Linux and use encryption Online content includes: • 180 practice exam questions • Downloadable virtual machines • 20+ video clips