Linux Basics courses can help you learn command line navigation, file management, user permissions, and process management. You can build skills in shell scripting, system monitoring, and troubleshooting common issues. Many courses introduce tools like the Bash shell, Git for version control, and text editors such as Vim or Nano, showing how these skills are applied in real-world environments to manage servers and automate tasks.

Korea Advanced Institute of Science and Technology(KAIST)
Skills you'll gain: electromagnetics, Electrical Engineering, Physics, Materials science, Mechanics, Engineering, Differential Equations, Mathematical Modeling
★ 4.8 (235) · Advanced · Course · 1 - 3 Months

Corporate Finance Institute
Skills you'll gain: SQL, Databases, Data Manipulation, Data Analysis, Relational Databases, Data Access, Business Intelligence, Query Languages, Data Warehousing, Data Transformation
★ 4.7 (81) · Beginner · Course · 1 - 3 Months

Skills you'll gain: LinkedIn, Content Creation, Social Media Content, Driving engagement, Professional Networking, Digital Publishing, Social Media, Relationship Building, Branding, Web Presence, Social Media Strategy, Brand Awareness
★ 4.5 (389) · Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Medical Billing and Coding, Medical Coding, ICD Coding (ICD-9/ICD-10), Medical Billing, CPT Coding, Health Information Management, Medical Records, Revenue Cycle Management, Clinical Documentation
★ 4.5 (35) · Beginner · Course · 1 - 3 Months
University of California, Irvine
Skills you'll gain: Blockchain, FinTech, Cryptography, Distributed Computing, Transaction Processing, Payment Systems, Cryptographic Protocols, Emerging Technologies, Digital Assets, Digital Transformation, Software Architecture, Data Integrity, Network Analysis
★ 4.2 (180) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Kubernetes, Docker (Software), Containerization, Cloud-Native Computing, Application Deployment, YAML, Devops Tools, Command-Line Interface, Google Cloud Platform, Web Applications, Cloud Deployment, Data Persistence, Development Environment, Configuration Management, Virtual Networking, Nginx, Software Installation, MongoDB, Service Management, Infrastructure Architecture
★ 4.7 (49) · Intermediate · Specialization · 3 - 6 Months
University of California, Irvine
Skills you'll gain: Physiology, Immunology, Infectious Diseases, Life Sciences, Cell Biology, Respiration, Pathology, Hematology, Diagnostic Tests, Cardiology, Precision Medicine, Molecular, Cellular, and Microbiology, Microbiology, Pharmacology, Biochemistry, Molecular Biology, Biology, Oncology
★ 4.8 (106) · Intermediate · Course · 1 - 4 Weeks

Johns Hopkins University
Skills you'll gain: Medical Billing and Coding, Denial Management, Patient Registration, Revenue Cycle Management, ICD Coding (ICD-9/ICD-10), Claims Processing, Payment Processing and Collection, Registration, CPT Coding, Medical Billing, Medical Coding, Billing, Insurance, Insurance Policies, Revenue Management
★ 4.8 (96) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: File I/O, Data Import/Export, C++ (Programming Language), C and C++, Programming Principles, Data Structures, File Management, Computer Programming, Data Store, Memory Management, Computer Science, Development Environment
★ 4.7 (243) · Beginner · Course · 1 - 4 Weeks

Duke University
Skills you'll gain: Cloud Deployment, Cloud-Native Computing, Cloud Platforms, Application Deployment, Microservices, Cloud Computing, DevOps, Kubernetes, Cloud Management, Continuous Delivery, Containerization, Amazon Web Services, Serverless Computing, Virtual Machines, Performance Testing, Virtualization and Virtual Machines, System Monitoring, Flask (Web Framework), Performance Stress Testing, Continuous Monitoring
★ 4.4 (136) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Bayesian Statistics, Databricks, Sampling (Statistics), Statistical Modeling, Probability, Jupyter, Regression Analysis, Probability & Statistics, Model Evaluation, Statistical Software, Probability Distribution, Data Science, Markov Model, Statistics, Statistical Programming, Statistical Inference, Statistical Methods, Simulations, Data Visualization, Python Programming
★ 4 (109) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Network Security, Intrusion Detection and Prevention, Command-Line Interface, Cybersecurity, IT Security Architecture, Information Systems Security, Local Area Networks, Cyber Attacks, Computer Security, Linux Commands, Windows PowerShell, Security Controls, Hardening, Vulnerability Scanning, Endpoint Security, Threat Detection, Linux, Network Architecture, Wireless Networks, Network Analysis
★ 4.4 (15) · Intermediate · Course · 1 - 4 Weeks