Learn what Linux is, its history, major distributions, open source concepts, installation methods, and Linux architecture fundamentals.

Learn Linux file system hierarchy (FHS), hard links, symbolic links, mounting, disk management, and Logical Volume Management (LVM).

Learn how to create, modify, and manage user accounts and groups in Linux.

Learn how to monitor, control, and manage running processes on Linux systems.

Learn how to install, update, and manage software packages using apt, yum/dnf, and zypper package managers.

Learn how to configure network interfaces, understand IP addressing, DNS, routing, and use network troubleshooting tools.

Learn how Linux boots, understand GRUB, systemd, boot targets, and how to troubleshoot boot issues.

Learn advanced file operations including tar archives, rsync synchronization, dd disk imaging, and find file searching.

Learn how to secure Linux systems including SSH configuration, sudo, firewalls, and security best practices.

Learn how to monitor system resources, identify performance bottlenecks, and troubleshoot system issues.

Learn how to write shell scripts to automate tasks, handle user input, use conditional statements, and create loops.

Learn how to configure and manage the X server, display managers, and window managers.

Learn how to configure system locale, time zones, date, and time settings.

Learn how to customize your shell environment with variables, shell options, aliases, functions, and login scripts.

Learn essential file operations: copying, moving, renaming, deleting files and directories.

Learn how to schedule tasks using cron and at commands.

Learn how to search text files using grep, egrep, and regular expressions.

Master the VI/Vim text editor for efficient command-line file editing.

Learn advanced file permissions including SUID, SGID, Sticky bit, umask, and Access Control Lists (ACLs).