Linux is the foundation of every DevOps, cloud, and backend engineering role. From basic navigation to advanced scripting and system administration.
Essential shell commands every DevOps engineer must know
Understanding /etc, /var, /proc, /sys and everything in between
Managing users, groups, sudo and access control
chmod, chown, umask, ACLs and sticky bits explained
apt, yum, dnf, snap — installing and managing software
ps, top, kill, nice, background jobs and process trees
lsblk, fdisk, df, du, LVM and filesystem mounting
ip, netstat, ss, ifconfig, route and network diagnostics
Write powerful Bash scripts for automation and DevOps tasks
Schedule tasks with crontab, at, and systemd timers
systemctl, unit files, journald and service management
journalctl, /var/log, logrotate and centralized logging
ls, cd, grep, find, awk, sed — the toolkit every Linux user must master.
chmod, chown, and understanding rwx for users, groups, and others.
Monitoring and controlling processes with ps, top, kill, and systemd.
Automate repetitive tasks with Bash scripts, variables, and loops.
Learn basic navigation (ls, cd, pwd), file operations, and understanding the filesystem hierarchy.
Master permissions, user management, shell scripting, cron jobs, and package managers.
Deep dive into systemd, kernel parameters, performance tuning, eBPF, and Linux internals.
This domain is a core requirement for senior engineering roles.
Jump into interactive sandboxes and solve real-world Linux & OS Basics challenges.