Linux

Linux

Articles

Linux command guides, shell tips, and system administration.

Learning Path — 18 articles

1 Bash Scripting Basics: A Beginner's Guide Learn bash scripting from scratch. Variables, conditionals, loops, functions, and real-world script examples for Linux … 8 min Start Here 2 Linux Command Cheat Sheet A quick-reference Linux command cheat sheet for everyday tasks. File operations, process management, networking, and … 9 min Start Here 3 Linux File Permissions: Understanding chmod, chown, and umask Practical guide to Linux file permissions covering chmod, chown, umask, special permissions (SUID, SGID, sticky bit), … 7 min Start Here 4 Linux Storage Management Complete Guide Linux storage guide: disk identification, partitioning with fdisk/parted, filesystems ext4/XFS/Btrfs, LVM, RAID, mount … 8 min 5 Linux Environment Variables: Complete Guide Comprehensive guide to Linux environment variables covering setting, exporting, persistence in shell config files, … 7 min 6 Systemd Guide: Services, Timers & Logging Complete Linux systemd guide: unit files, systemctl commands, journalctl logging, timers replacing cron, boot analysis, … 8 min 7 Linux Text Processing: grep, sed, awk Guide Master Linux text processing with grep, sed, awk, cut, sort, uniq, tr, xargs, and pipes. Includes practical log … 8 min 8 Grep Command Guide: Search Like a Pro Master the grep command for powerful text searching in Linux. Covers regex patterns, recursive search, context lines, … 7 min 9 Advanced Systemd Hardening & Tuning Guide Advanced Linux systemd: service hardening, socket activation, resource control, CPU/memory limits, drop-ins, journald … 8 min 10 Linux Namespaces & Container Isolation Guide Linux namespaces explained: PID, network, mount, user, cgroup, IPC, UTS namespaces, how Docker uses them for container … 8 min 11 Linux Process Management: ps, top, htop, kill, and More Complete guide to Linux process management covering viewing processes with ps/top/htop, process states, signals, … 7 min 12 Bash Scripting: A Complete Guide Master Bash scripting from basics to advanced. Covers variables, control flow, functions, argument parsing, error … 8 min 13 Sed and Awk Guide: Powerful Text Processing Comprehensive guide to sed (stream editor) and awk (text processing language) for Linux command-line text manipulation, … 8 min 14 Linux Networking: A Practical Guide Practical Linux networking guide covering ip, ss, tcpdump, netstat, curl, DNS resolution, interface configuration, and … 7 min 15 Cron Jobs: Scheduling Tasks on Linux Complete guide to cron jobs on Linux covering crontab syntax, scheduling patterns, logging, troubleshooting, and best … 8 min 16 Linux Cron Jobs: Scheduling and Automation Practical guide to cron jobs on Linux. Covers crontab syntax, scheduling automation, backup scripts, monitoring, … 8 min Advanced 17 SSH Guide: Secure Shell for Remote Access Comprehensive SSH guide covering key-based authentication, configuration hardening, tunneling, agent forwarding, port … 7 min Advanced 18 Systemd: A Complete Guide to System and Service Management Comprehensive guide to systemd covering service units, journalctl, systemctl, timers, target management, and best … 7 min Advanced