From command line to Kubernetes and Terraform, this bundle covers a lot!

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Humble Bundle is offering 15 O'Reilly Linux and DevOps eBooks for under $25 (starting at $21.80), with the deal running until February 28, 2026. The collection covers Linux administration (command line, system admin, modern Linux), DevOps automation (Python, Ansible, GitHub Actions), infrastructure as code (Terraform), containers and orchestration (Docker, Kubernetes), security (DevSecOps, web app security), and more. Total retail value is listed at $789. A portion of proceeds goes to Code for America.

Serious About Learning Linux? Get 15 O'Reilly Linux and DevOps eBooks for Under $25