Linux courses can help you learn system administration, shell scripting, file management, and network configuration. You can build skills in user permissions, process management, and troubleshooting system issues. Many courses introduce tools like the command line interface, Git for version control, and various Linux distributions, providing practical experience in managing servers and automating tasks.

Cisco Learning and Certifications
Skills you'll gain: Incident Response, Security Information and Event Management (SIEM), Event Monitoring, Computer Security Incident Management, Security Management, Cyber Operations, DevSecOps, System Monitoring, Cybersecurity, Cyber Threat Intelligence, Threat Management, Incident Management, Threat Detection, Continuous Monitoring, Security Strategy, Cloud Deployment, Stakeholder Engagement, Network Security, Cyber Threat Hunting, Cloud-Native Computing
★ 4.8 (372) · Mixed · Course · 1 - 3 Months

Coursera
Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, Scripting, Linux Commands, Unix Commands, Scripting Languages, Command-Line Interface, Linux, File Management, Unix, File Systems, Systems Administration
★ 4.5 (683) · Beginner · Guided Project · Less Than 2 Hours

EDUCBA
★ 4.9 (20) · Intermediate · Course · 1 - 4 Weeks

University of California, Davis
Skills you'll gain: Threat Modeling, Open Web Application Security Project (OWASP), Secure Coding, Cryptography, Authentications, Exploit development, Encryption, Penetration Testing, Security Strategy, Security Testing, Data Security, Application Security, Exploitation techniques, Software Design, C and C++, Linux Administration, System Design and Implementation, Java, Programming Principles, Cybersecurity
★ 4.5 (618) · Intermediate · Specialization · 3 - 6 Months

University of Colorado System
Skills you'll gain: Penetration Testing, Exploit development, Metasploit, Application Security, Security Testing, Cyber Security Assessment, Vulnerability Scanning, Brute-force attacks, Secure Coding, Exploitation techniques, Software Design Patterns, Vulnerability Assessments, Memory Management, Amazon Web Services, SQL, Amazon Elastic Compute Cloud, Operating Systems, Data Validation
★ 4 (279) · Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Malware Protection, Cyber Security Strategy, Exploitation techniques, Cybersecurity, Threat Detection, Email Security, Security Software, Vulnerability Assessments, Network Security, Human Factors (Security), Network Analysis, Linux, Data Persistence
★ 5 (16) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: Hardening, Performance Tuning, Systems Analysis, Operating System Administration, Virtual Environment, Virtualization and Virtual Machines, Memory Management, End User Training and Support, Help Desk Support, File I/O, Security Management, Debugging, Service Management, OS Process Management, Data Maintenance, Scripting, Record Keeping, Cloud Deployment
★ 4.3 (12) · Beginner · Specialization · 1 - 3 Months

Skills you'll gain: Kubernetes, Bash (Scripting Language), Jenkins, Terraform, Continuous Integration, Web Servers, Amazon CloudWatch, IT Automation, Linux Commands, Nginx, Cloud Deployment, Operating System Administration, Firewall, DevOps, Infrastructure As A Service (IaaS), Systems Architecture, Cloud Infrastructure, Git (Version Control System), Data Storage, Role-Based Access Control (RBAC)
Intermediate · Specialization · 3 - 6 Months

Skills you'll gain: Threat Detection, Penetration Testing, Exploit development, Cyber Threat Intelligence, Threat Management, Linux Administration, Incident Response, Vulnerability Scanning, Vulnerability Assessments, Cybersecurity, Vulnerability Management, Network Monitoring, Bash (Scripting Language), Cyber Security Assessment, Network Security, Anomaly Detection, Incident Management, AI Security, Information Systems Security, Network Analysis
★ 4.6 (217) · Intermediate · Professional Certificate · 3 - 6 Months

Duke University
Skills you'll gain: Rust (Programming Language), Containerization, Data Pipelines, CI/CD, Docker (Software), Jenkins, Application Deployment, DevOps, LLM Application, Continuous Integration, Hugging Face, Large Language Modeling, Test Case, Restful API, Serverless Computing, Generative AI, Command-Line Interface, Natural Language Processing, Computer Programming, Cloud Computing
★ 3.9 (313) · Beginner · Specialization · 3 - 6 Months

Skills you'll gain: Penetration Testing, Vulnerability Scanning, Vulnerability Assessments, Cyber Security Assessment, Exploitation techniques, Security Testing, Mobile Security, Test Script Development, Scripting, Android (Operating System), Application Security, Human Factors (Security), Scripting Languages, Network Analysis, Automation, Analysis, Virtual Environment
★ 4.8 (14) · Mixed · Course · 1 - 4 Weeks

Skills you'll gain: File Systems, Red Hat Enterprise Linux, Linux, User Accounts, Software Installation, Linux Administration, System Monitoring, File Management, Package and Software Management, Linux Commands, Operating System Administration, General Networking, File I/O, Command-Line Interface, Network Support, Computing Platforms, Authorization (Computing), Identity and Access Management
Beginner · Course · 1 - 3 Months