Linux for Support and Operations
Learn Linux the practical way: commands, services, logs, permissions, and production-minded checks for support and engineering work.
This subject turns Linux from an intimidating black box into a structured environment you can inspect, reason about, and troubleshoot calmly.
Linux is one of the most valuable skills for support engineers, cloud learners, DevOps-adjacent roles, and backend-focused professionals. This subject is designed around operational confidence rather than memorizing disconnected commands.
Work through the topics in order to build command-line fluency, service and log awareness, permission reasoning, networking checks, storage troubleshooting, SSH access confidence, and support-friendly automation habits.
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Continue this subject
- Linux Command Line and Filesystem Basics
Build comfort with navigation, files, directories, editors, and the mental model behind the Linux filesystem.
- Linux Logs, Services, and Process Diagnosis
Learn how to inspect service state, logs, and processes so Linux incidents stop feeling random.
- Linux Permissions, Users, and Package Management
Understand users, groups, sudo, permissions, and packages so you can explain and fix common access and software issues safely.
- Linux Performance and Production Checks
Move from command familiarity into production-minded checks for CPU, memory, disk, uptime, and dependency health.
- Linux Networking Checks for Support Engineers
Learn simple Linux network checks for DNS, IP, ports, routes, and connectivity issues that support engineers see often.
- Linux Disk, Storage, and Filesystem Troubleshooting
Understand disk space, inode usage, large files, mounts, and common storage symptoms in Linux support work.
- Linux SSH and Secure Access Troubleshooting
Learn how to troubleshoot SSH access issues using service state, keys, permissions, ports, and safe login checks.
- Linux Shell Scripting for Support Automation
Learn simple shell scripting patterns that help support engineers collect evidence and repeat checks consistently.