Welcome to the Linux Command Line & Shell Scripting Mastery repository! 🎉 This repo is a complete journey from mastering fundamental Linux commands ➝ managing processes & systems ➝ diving deep into shell scripting for automation.
Linux is the backbone of modern computing—powering servers, cloud infrastructure, DevOps pipelines, and embedded systems. This repository is designed to be your practical, hands-on guide to learning Linux systematically:
- ✅ Start with basic commands (navigation, file handling, permissions).
- ✅ Progress into process & system management (jobs, signals, scheduling, monitoring).
- ✅ Advance into shell scripting (variables, loops, functions, automation).
- ✅ Finally, explore advanced scripting & system tasks (error handling, debugging, logging, cron jobs, and real-world automation).
- 📂 File & Directory Management
- 📝 File Viewing & Editing
- 🔄 File Operations (copy, move, delete)
- 🔍 Searching & Filtering (
grep,find,awk,sed) - 🔒 Permissions & Ownership (
chmod,chown,umask) - 📦 Archiving & Compression (
tar,gzip,zip)
- ⚙️ Running, Killing, and Prioritizing Processes (
ps,kill,nice,top,htop) - 🕒 Job Control (
fg,bg,jobs,&,nohup) - ⏱ Scheduling Tasks (
cron,at) - 📊 System Monitoring (
df,du,uptime,vmstat,iostat)
- 📌 Basics: Variables, Input/Output, Operators
- 🔁 Control Flow:
if,case,for,while,until - 📂 File Handling: Reading/Writing files, Redirection, Pipes
- ⚡ Functions & Modular Scripts
- 🛡 Error Handling & Debugging (
trap,set -e,bash -x)
- 🕵️ Text Processing (
awk,sed,cut,sort,uniq) - 🛠 System Scripts: User management, backups, monitoring scripts
- 📅 Scheduling Automation with
cron&systemd timers - 🧰 DevOps/Cloud Use Cases: Log parsing, Deployment scripts, Health checks
- Phase 1 – Basics: File navigation, file handling, permissions.
- Phase 2 – Process Management: Understanding processes, jobs, signals, scheduling.
- Phase 3 – Shell Scripting: Automating simple tasks, modular scripting.
- Phase 4 – Advanced Automation: Monitoring, backups, deployment scripts, system tasks.
- Phase 5 – Expert Level: Integration with DevOps tools (Docker, AWS CLI, Ansible).
We welcome contributions! 🙌
- Add new commands with explanations.
- Share practical scripts for automation.
- Improve documentation with real-world examples.
- Beginners 🚀 getting started with Linux.
- Intermediate users 📈 wanting process/system management knowledge.
- Advanced learners 🧑💻 aiming to master shell scripting for DevOps, cloud, or automation.
This repo is your living reference guide to Linux mastery. Start small, practice daily, and you’ll soon be automating and managing systems like a pro. 💻✨
