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How to Check Disk Space Usage in Linux with du and df

Linux & System Administration

How to Check Disk Space Usage in Linux with du and df

Graphic showing Linux commands df -h and du -sh /path, illustrating filesystem summary vs directory sizes, example outputs, key columns, and tips to locate largest files. Use du/df

Understanding Indexes and Query Optimization

Data, Databases & Scripting

Understanding Indexes and Query Optimization

Illustration of database indexing and query optimization: B-tree and hash index diagrams, sample query plan arrows, cost estimates, joins and tips to reduce scans and speed lookups

Common Database Security Mistakes to Avoid

Data, Databases & Scripting

Common Database Security Mistakes to Avoid

SPONSORED Sponsor message — This article is made possible by Dargslan.com, a

Building an Effective IT Strategy: From Vision to Execution

Building an Effective IT Strategy: From Vision to Execution

An effective IT strategy aligns technology with business goals, turning tools into systems that scale, secure, and sustain growth through clarity, structure, and adaptability.

How to Automate Database Maintenance Tasks

Data, Databases & Scripting

How to Automate Database Maintenance Tasks

Automated database maintenance with scheduled backups index rebuilds, log cleanup, perf monitoring and alerts, orchestrated by automation tools to ensure uptime and data integrity.

Automating Backups to a Remote Server with rsync

Automating Backups to a Remote Server with rsync

Automate backups to a remote server with rsync: step-by-step, secure SSH setup and simple commands. A beginner-friendly Linux/DevOps guide to schedule reliable, efficient backups.

Building Reports from Logs and System Data

Data, Databases & Scripting

Building Reports from Logs and System Data

Visual display of automated building reports from system logs and analytics: dashboard widgets showing errors, performance trends, timestamps, metrics, downloads PDF/CSV summaries.

Introduction to Data Normalization and Relationships

Data, Databases & Scripting

Introduction to Data Normalization and Relationships

Diagram showing data normalization concepts: tables with primary and foreign keys, elimination of redundancy across normal forms, entity relationships, and improved data integrity.

Secure Python Code: Writing Safe and Resilient Applications

Secure Python Code: Writing Safe and Resilient Applications

Secure Web Development in JavaScript: Building Safe and Resilient Web Applications Using Modern JavaScript Practices,Protect your web apps with secure JavaScript coding and modern best practices.

Connecting Python or PowerShell to a Database

Data, Databases & Scripting

Connecting Python or PowerShell to a Database

Isometric studio render: neon-green geometric serpent and deep-blue shell console linked by glowing cyan-teal fiber-optic data streams to a glossy glass database tower, rim-lit HDR

TypeScript for JavaScript Developers: A Beginner’s Guide

TypeScript for JavaScript Developers: A Beginner’s Guide

Secure Python Code: Writing Safe and Resilient Applications,Write secure Python code and defend against vulnerabilities in production.

Database Backup and Recovery Strategies

Data, Databases & Scripting

Database Backup and Recovery Strategies

Database backup and recovery strategies: full, incremental, differential local, and cloud storage scheduled backups redundant copies; regular recovery testing point-in-time restore.