Linux® Essentials
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Linux® Command Line and Shell Scripting Bible
RTFM - Red Team Field Manual
Ben Clark
GPEN GIAC Certified Penetration Tester All-in-One Exam Guide
Raymond Nutting
Introduction to Sociology 2e
Heather Griffiths & Nathan Keirns & Gail Scaramuzzo & Susan Cody-Rydzewski & Eric Strayer & Sally Vyrain