Find Commands
Quickly find practical commands for Linux, Kubernetes, Docker, cloud, CI/CD and infrastructure automation.
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Solve Problems
Follow practical troubleshooting workflows for common production and infrastructure issues.
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Build Commands
Build kubectl commands interactively with namespaces, resources, images, ports and output options.
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Explore
Popular DevOps Topics
Practical references for the technologies used across DevOps, cloud engineering and SRE.
Linux
Commands, troubleshooting and system administration.
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Kubernetes
kubectl commands, deployments and production issues.
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Docker
Containers, images, networking and troubleshooting.
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AWS CLI
EC2, S3, IAM, VPC and cloud administration.
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Git
Branches, commits, merge, rebase and troubleshooting.
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Terraform
Infrastructure as code, state, modules and deployments.
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Ansible
Automation, playbooks, inventory and configuration.
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Jenkins
Jobs, builds, pipelines, agents and CI/CD automation.
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Helm
Kubernetes charts, releases, upgrades and rollbacks.
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Prometheus
Monitoring, PromQL, alerting and SRE troubleshooting.
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Azure CLI
Azure VMs, Storage, AKS, networking and DevOps.
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Google Cloud CLI
Compute Engine, Storage, GKE, Cloud Run and IAM.
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DevOps Troubleshooting
Production troubleshooting for common DevOps and SRE issues.
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DevOps Interview
Practical DevOps, cloud, Kubernetes and SRE interview questions.
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Production Support
🚨 Production problem? Start here.
Practical troubleshooting paths for the problems DevOps, application support and SRE teams commonly investigate.
Kubernetes Pod CrashLoopBackOff
Check pod status, events, logs, probes, configuration and resource issues.
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KubernetesKubernetes Pod Pending
Investigate scheduling, resources, taints, node availability and events.
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LinuxLinux Disk Full
Find large files, full filesystems, deleted-open files and storage issues.
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SRELinux High CPU
Identify CPU-consuming processes and investigate application behaviour.
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DockerDocker Container Not Starting
Inspect containers, images, logs, ports, volumes and runtime errors.
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JenkinsJenkins Build Failed
Check console output, workspace, agents, credentials and pipeline errors.
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TerraformTerraform State Locked
Understand state locking, inspect state and safely recover from lock issues.
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ProductionApplication Port Not Responding
Check listening ports, processes, firewall rules and network connectivity.
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Command Reference
⚡ DevOps Command Guides
Searchable command references with practical examples, troubleshooting commands and production-focused workflows.
Kubernetes
kubectl Commands Cheat Sheet
Practical kubectl commands for pods, deployments, services and troubleshooting.
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Linux
Linux Commands Cheat Sheet
Essential Linux commands for system administration and troubleshooting.
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Docker
Docker Commands Cheat Sheet
Essential Docker commands for containers, images, logs and troubleshooting.
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AWS
AWS CLI Commands Cheat Sheet
AWS CLI commands for EC2, S3, IAM, VPC, ECR, ECS, EKS, Lambda and CloudWatch.
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Terraform
Terraform Commands Cheat Sheet
Infrastructure as code, providers, state, modules, workspaces and deployment.
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Ansible
Ansible Commands Cheat Sheet
Practical commands for inventory, connectivity, playbooks and automation.
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Jenkins
Jenkins Commands Cheat Sheet
Jobs, builds, pipelines, agents, credentials, logs and CI/CD troubleshooting.
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Helm
Helm Commands Cheat Sheet
Charts, repositories, releases, upgrades, rollbacks, values and templates.
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Prometheus
Prometheus & PromQL Cheat Sheet
PromQL, promtool, monitoring, alerting, recording rules and troubleshooting.
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SRE
SRE Server Troubleshooting Guide
A practical workflow for CPU, memory, disk, processes, services, logs and networking.
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Free Utilities
🛠 Free DevOps Tools
Useful browser-based tools for developers, DevOps engineers, cloud engineers and SREs.
Kubernetes Command Builder
Build kubectl commands interactively with actions, resources, namespaces and options.
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NEWDevOps Scenario Generator
Practice real-world DevOps incidents with a simulated terminal and guided troubleshooting workflow.
Practice a Scenario →
YAML Validator
Validate YAML syntax instantly.
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JSON Formatter
Format, validate and minify JSON instantly.
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Cron Generator
Create cron expressions easily.
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CIDR Calculator
Calculate IP ranges and subnets.
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Career Preparation
🎯 Preparing for a DevOps interview?
Practice practical questions across Linux, Git, Docker, Kubernetes, cloud, CI/CD, Terraform, Ansible and SRE.
Start Interview Preparation →Your DevOps command reference starts here.
Search commands, troubleshoot production issues, use free tools and build your DevOps knowledge.