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How to Master top, htop, btop, and atop
Linux

How to Master top, htop, btop, and atop

Something’s eating CPU or memory, and you need to see exactly what — fast. If you’ve ever stared at top and wondered …

AaradhyaCommunity · · 16 min read

Mr Cloud Book

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Step-by-step DevOps projects you can follow along — CI/CD pipelines, Kubernetes deployments, Docker builds, Terraform infra, and end-to-end production setups.

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AI Cloud DevSecOps Engineering

A structured path from Linux basics to production-grade AI Cloud DevSecOps — follow it step by step.

01

Linux & Networking Fundamentals

Master the CLI, shell scripting, user management, process control, and networking — DNS, TCP/IP, HTTP, and firewalls.

UbuntuCentOSBashSSHVimsystemdiptablesTCP/IPDNSNginx
02

Programming & Scripting

Learn a language for automation and tooling. Understand data formats, REST APIs, and writing reusable scripts.

PythonGoBash / ShellYAMLJSONREST APIsBoto3Makefiles
03

Git & Version Control

Branching strategies, pull requests, merge conflicts, rebasing, tagging, and collaborative workflows.

GitGitHubGitLabBitbucketGit FlowTrunk-Based DevPre-commit Hooks
04

Cloud Platforms

Cloud-native services — compute, storage, networking, IAM, and managed Kubernetes across major providers.

AWS (EC2, S3, IAM, VPC, EKS, Lambda)Azure (AKS, DevOps)GCP (GKE, Cloud Build)
05

Containers & Docker

Build images, multi-container apps, networking, volumes, and private registries.

DockerDocker ComposePodmanBuildahECR / ACR / GCRDistroless
06

Infrastructure as Code

Provision infrastructure declaratively. Reusable modules, state management, and config at scale.

TerraformAnsiblePulumiCloudFormationCrossplanePackerTerragrunt
07

CI/CD Pipelines

Automate build, test, deploy. Multi-stage pipelines, parallel jobs, caching, artifacts, and rollbacks.

JenkinsGitHub ActionsGitLab CI/CDAzure DevOpsCircleCITektonNexusSonarQube
08

Kubernetes & Orchestration

Pods, Services, Deployments, StatefulSets, RBAC, Ingress, Helm, and managed K8s clusters.

KuberneteskubectlHelmKustomizeEKS / AKS / GKEk3sMinikubeOperator SDK
09

Security & DevSecOps

Shift left — vulnerability scanning, secrets, policy enforcement, image signing, and compliance.

TrivySnykSonarQubeOWASP ZAPFalcoOPAVaultCosignCheckov
10

Monitoring & Observability

Metrics, logs, traces, dashboards, alerting, SLIs/SLOs, and incident response.

PrometheusGrafanaELK StackLokiJaegerOpenTelemetryDatadogPagerDuty
11

GitOps & Progressive Delivery

Git as the source of truth. Pull-based reconciliation, canary releases, blue-green, and feature flags.

ArgoCDFluxFlaggerArgo RolloutsSpinnakerKustomizeHelm
12

Service Mesh & Platform Engineering

Service-to-service communication, traffic routing, mTLS, and internal developer platforms.

IstioLinkerdEnvoyNginx IngressCert-ManagerBackstageKratix

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Priya D.SRE at a Fintech

"The DevSecOps CI/CD tutorials are the most hands-on, practical guides I've found anywhere. Each step is clearly explained with real commands you can copy and run."

N
NazirDevOps Learner

"The Kubernetes Masterclass series took me from zero to deploying production clusters on EKS. The day-by-day format made it easy to follow alongside work."

R
Ravi K.Cloud Engineer

"I love how every project includes security scanning from the start — not as an afterthought. This is how real DevSecOps should be taught."

S
Sarah M.Security Analyst

"Mr Cloud Book's YouTube channel combined with these blog posts created the perfect learning combo. Got my first DevOps job within 6 months of following along."

A
Ahmed T.Junior DevOps Engineer

"The Terraform and Ansible posts saved me hours of debugging. Clear, concise, and production-tested. Bookmarked every single one."

P
Priya D.SRE at a Fintech

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