File Permissions

Master Linux fundamentals with this deep dive into Bash essentials! Discover why Linux organizes everything under one unified filesystem tree and how the Filesystem Hierarchy Standard (FHS) ensures consistency. Learn what’s critical in / at boot versus post-startup, explore key directories like /bin, /etc, and /home, and manage environment variables, aliases, and command history like a pro. Demystify user/group management: create accounts, set password policies, and leverage root safely. Control file permissions via chmod, chown, and ACLs, and harness groups for shared access.