Operating system courses can help you learn process management, memory allocation, file systems, and user interfaces. You can build skills in troubleshooting system errors, optimizing performance, and implementing security protocols. Many courses introduce tools like Linux, Windows, and virtualization software, illustrating how these skills are applied in real-world environments.

Simplilearn
Skills you'll gain: Package and Software Management, File Systems, File Management, Linux Administration, Unix, grep, Linux Commands, Command-Line Interface, Operating System Administration, System Monitoring, Open Source Technology, User Accounts, Software Installation
Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Firewall, Network Security, Linux, Linux Administration, Security Controls, Hardening, Ubuntu, Linux Commands, File Management, Authorization (Computing), File Systems, System Configuration, Endpoint Security, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: System Monitoring, Shell Script, Bash (Scripting Language), User Accounts, Linux Commands, Linux, Systems Administration, Linux Administration, User Provisioning, Operating System Administration, Network Troubleshooting, System Configuration, File Management, File Systems, Command-Line Interface, Remote Access Systems, Network Administration, Software Installation, Virtualization and Virtual Machines, Virtual Machines
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Command-Line Interface, Unix Shell, Unix Commands, Unix, Linux, File Management, Linux Commands, File Systems, File I/O, Systems Architecture
★ 4.9 (15) · Beginner · Course · 1 - 4 Weeks

Packt
Skills you'll gain: Linux, Linux Administration, Linux Commands, File Management, Linux Servers, User Accounts, File Systems, Unix, OS Process Management, Unix Shell, Command-Line Interface, User Provisioning, General Networking, Shell Script, Operating Systems, File I/O, Network Support, Remote Access Systems, Scripting, Dataflow
★ 4.6 (10) · Intermediate · Course · 1 - 3 Months

Cisco Learning and Certifications
Skills you'll gain: File Systems, Endpoint Security, Linux, Operating System Administration, Microsoft Windows, Windows PowerShell, Linux Administration, Windows Servers, Operating Systems, Security Software, Linux Commands, File Management, Network Administration, Active Directory, System Monitoring, System Configuration, OS Process Management, Network Security, Command-Line Interface, Malware Protection
★ 4.8 (67) · Mixed · Course · 1 - 4 Weeks

EDUCBA
Skills you'll gain: Remote Access Systems, Command-Line Interface, System Monitoring, Unix Commands, User Accounts, Unix Shell, Linux, Linux Administration, Shell Script, Linux Commands, User Provisioning, Operating System Administration, Linux Servers, Network Security, Systems Administration, Software Installation, File Systems, System Configuration, Data Sharing, Operating Systems
★ 4.8 (24) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Virtualization, Cloud Computing, Virtualization and Virtual Machines, Virtual Machines, Cloud Services, Display Devices, Computer Hardware, Operating Systems, Computer Displays, Containerization, Wireless Networks
★ 4.7 (22) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Peripheral Devices, Network Troubleshooting, Desktop Support, Computer Displays, USB, Display Devices, TCP/IP, Virtual Local Area Network (VLAN), Operating System Administration, Hardware Troubleshooting, Mac OS, Microsoft Windows, General Networking, Technical Support and Services, Technical Support, Network Infrastructure, System Support, Local Area Networks, Network Protocols, Knowledge of Apple Software
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Networking Hardware, General Networking, Network Architecture, Wireless Networks, Network Protocols, Computer Networking, TCP/IP, Local Area Networks, Network Security, Network Troubleshooting, System Configuration, Wide Area Networks, Servers
★ 4.5 (295) · Beginner · Course · 1 - 4 Weeks

Skills you'll gain: Linux, Linux Administration, File Systems, Remote Access Systems, Operating System Administration, Linux Commands, File Management, System Configuration, Unix, Software Installation, Command-Line Interface, Operating Systems, Virtualization and Virtual Machines, Systems Administration, Authorization (Computing), Virtualization, Virtual Machines, Open Source Technology, VPN Clients, User Accounts
★ 4.8 (8) · Beginner · Course · 1 - 3 Months

Skills you'll gain: Shell Script, Linux, Package and Software Management, Linux Administration, Linux Commands, Linux Servers, Unix Shell, Unix, Bash (Scripting Language), Systems Administration, Operating System Administration, Hardening, Patch Management, Scripting Languages, Scripting, System Monitoring, User Accounts, Dynamic Host Configuration Protocol (DHCP), Command-Line Interface, Process Management
Advanced · Course · 1 - 4 Weeks