The language used throughout the course, in both instruction and assessments.

Packt
Skills you'll gain: Node.JS, Javascript, Event-Driven Programming, Web Applications, Web Servers, Software Installation, Server Side, Application Development, JSON, Real Time Data, File Management, Command-Line Interface, TCP/IP, OS Process Management
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Performance Tuning, Oracle Databases, Operational Databases, SQL, Linux Administration, System Monitoring, Linux, Database Management, Linux Commands, Database Architecture and Administration, Maintainability, Performance Testing, Data Storage Technologies, Scenario Testing, OS Process Management, Data Storage, Simulations
Advanced · Course · 1 - 3 Months

Skills you'll gain: Unix Shell, Unix Commands, z/OS, Shell Script, Unix, File Systems, Job Control Language (JCL), Operating Systems, Command-Line Interface, OS Process Management, System Programming, File Management, Mainframe Computing, Debugging
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Linux, Ubuntu, Shell Script, Linux Commands, Unix Commands, Command-Line Interface, OS Process Management, File Management, Virtualization, Virtual Machines, Software Installation
Beginner · Course · 1 - 3 Months

Coursera Project Network
Skills you'll gain: Linux Commands, Linux, Command-Line Interface, Linux Administration, OS Process Management, Ubuntu, System Monitoring, Network Troubleshooting, File Transfer Protocol (FTP), File Management
Beginner · Guided Project · Less Than 2 Hours

Packt
Skills you'll gain: Linux, Linux Administration, Linux Commands, File Management, User Accounts, OS Process Management, Unix Commands, Unix Shell, Command-Line Interface, General Networking, Shell Script, Operating Systems, Remote Access Systems, Network Administration, Scripting, Scripting Languages, System Monitoring
Intermediate · Course · 1 - 3 Months

Coursera Project Network
Skills you'll gain: Scalability, Restful API, Rust (Programming Language), Application Programming Interface (API), OS Process Management, Video Game Development, Web Development, JSON, Programming Principles, Servers, Debugging, TCP/IP
Intermediate · Guided Project · Less Than 2 Hours

Skills you'll gain: Linux, Ubuntu, Linux Administration, Linux Servers, General Networking, Linux Commands, OS Process Management, Firewall, File Systems, Bash (Scripting Language), Network Security, Unix Commands, Command-Line Interface, File Management, Operating Systems, System Monitoring, Virtualization, Virtual Environment, Virtual Machines, User Accounts
Beginner · Course · 1 - 3 Months

University of California, Davis
Skills you'll gain: Secure Coding, Application Security, C and C++, Verification And Validation, Vulnerability Management, Linux, Security Controls, Vulnerability Assessments, Threat Modeling, Data Validation, Debugging, Cryptography, C (Programming Language), Identity and Access Management, Encryption, File Management, OS Process Management
Intermediate · Course · 1 - 4 Weeks