Linux Learning Roadmap
Linux Learning Roadmap
1. Linux Basics (Start here)
What is Linux? Distributions (Ubuntu, Debian, CentOS)
File system structure (/, /home, /etc, /var)
Basic commands:
ls, cd, pwd
cp, mv, rm
cat, less, head, tail
Help system:
man, --help
Goal: Move confidently in the terminal
2. Files, Permissions & Users
File permissions (rwx)
chmod, chown, chgrp
Users & groups:
useradd, usermod, groupadd
id, su, sudo
Goal: Understand who can access what
3. Processes & System Monitoring
Processes & jobs:
ps, top, htop
kill, nice
System info:
df, du, free, uptime
Goal: Control running systems
4. Package Management
Debian/Ubuntu:
apt update, apt install, apt remove
Red Hat:
dnf, yum
Goal: Install & update software safely
5. Networking Basics
Network tools:
ip a, ip r
ping, ss, netstat
curl, wget
Firewall basics:
ufw, iptables
Goal: Understand connectivity & ports
6. Storage & File Systems
Mounting:
mount, umount
Disk tools:
lsblk, df
Permissions & ownership review
Goal: Manage disks & storage
7. Services & Boot Process
Systemd:
systemctl start|stop|restart
systemctl enable
Logs:
journalctl
Goal: Control services & troubleshoot issues
8. Shell Scripting (Very Important)
Bash basics:
Variables, loops, conditions
Automate tasks
Simple backup scripts
Goal: Automate daily work
9. Linux Security Basics
SSH hardening
Firewall rules
File permissions best practices
Logs & auditing
Goal: Secure a Linux server
Practice Environment (Highly Recommended)
Install Ubuntu Server or Debian
Use:
VirtualBox / VMware
WSL (Windows Subsystem for Linux)
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