DevOps Cheatsheets.

CloudWatch, CloudTrail, CloudFormation, Cost Explorer, and AWS Budgets commands for DevOps monitoring, IaC, and cost management.

SQS, SNS, Kinesis, ECS, EKS, and ECR commands for production messaging, streaming, and container workloads.

S3, RDS, Aurora, DynamoDB, and ElastiCache commands for production AWS storage and database management.

VPC, IAM, Security Groups, Route 53, and CloudFront commands for production AWS networking and security.

EC2, Lambda, Auto Scaling, and Fargate commands for production compute — launch, scale, connect, and monitor.

The complete Linux command reference for DevOps engineers — file system, processes, networking, SSH, systemd, and bash one-liners for production.

Complete Git reference — branching, rebasing, stashing, undoing mistakes, and resolving merge conflicts every engineer hits in production repos.

PromQL query reference — selectors, rate functions, aggregations, alerting rules, and the queries engineers actually run during incidents.

GitHub Actions workflow syntax reference — triggers, jobs, secrets, matrix builds, caching, artifacts, and reusable workflows.

Terraform CLI quick reference — init, plan, apply, state management, workspaces, import, and troubleshooting commands for daily IaC work.

Complete SSH reference — key-based auth, config files, port forwarding, file transfer, and troubleshooting for secure remote access.

Practical Bash scripting reference — variables, conditionals, loops, functions, arrays, and error handling for real automation scripts.

Essential Linux command reference - filesystem, permissions, process management, disk usage, networking, and systemd for daily server work.

Complete Docker CLI reference — image builds, container lifecycle, volumes, networking, Compose, and cleanup commands for daily container work.

Complete kubectl reference - context switching, pods, rollouts, patching, troubleshooting, output formatting, and RBAC for production clusters.