Learning the basics of Linux is now essential in the quickly changing field of DevOps.
Linux skills are essential for a successful DevOps career, whether you're managing cloud-native environments, automating infrastructure, or deploying containerised apps.
The top ten Linux commands that every DevOps engineer needs to know by 2025 are as follows:
1. top — Monitor Real-Time Processes
Stay on top of your system’s CPU and memory usage.
2. grep — Search Like a Pro
From scanning massive log files to debugging issues, grep is your best friend.
3. ssh — Secure Remote Management
Mastering ssh is crucial for managing VMs, Kubernetes nodes, and cloud servers securely.
4. rsync — Efficient File Syncing
rsync lets you transfer and back up massive datasets with minimal downtime.
5. systemctl — Managing Services
Handling systemd services is critical when deploying apps on Linux VMs and bare-metal servers.
6. journalctl — Digging into System Logs
When a container crashes or a deployment fails, journalctl helps you uncover the root cause fast.
7. docker — The DevOps Superpower
Knowing your way around basic docker CLI commands is non-negotiable in today’s DevOps world.
8. kubectl — Kubernetes at Your Fingertips
From scaling pods to debugging clusters, kubectl is your go-to tool.
9. vim or nano — Editing on the Go
A true DevOps engineer should never fear quick config edits inside a production server.
10. curl — API Debugging Made Easy
Testing endpoints, health checks, or automation scripts?
curl remains the unsung hero of DevOps workflows.
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