Linux Skills for 2025 (+ How to Add Them to Your Resume)

If you want to increase your competitiveness as a candidate in the IT job market, learning to enhance and market your Linux skills is an excellent place to start. Statista named Linux as one of the world’s most popular open-source operating systems [1]. You can learn more about in-demand Linux skills and how to add them to your resume in the following article.

If you're ready to get started, sharpen your knowledge of Linux commands and shell scripting with an industry leader through IBM's online course, Hands-on Introduction to Linux Commands and Shell Scripting. In as little as 14 hours, you'll master informational, file, content, navigational, compression, and networking commands in Bash.

What are Linux skills?

Linux skills are technical competencies related to using Linux systems. They may vary slightly depending on your job title. If you already have some Linux experience and want to supplement your knowledge, consider browsing job postings in your area of interest to identify new focus areas. If you don’t yet have any Linux experience, start with the foundational skill set all Linux professionals need. 

Basic Linux skills 

• Navigating the system’s directories and filing system

• Manipulating files in the Linux shell

• User permission configuration

• Package installation and software management 

• Ability to identify and apply different filesystem types

• Using Linux commands for process management

• Basic troubleshooting and debugging

How to improve Linux skills at the foundational level

Getting started on your own can feel challenging, but many resources exist that you can use for self-instruction or guided learning. Here are some starting points for independent learners:

• Download Linux. Linux is free to use. You can download it anytime and get a feel for the navigation and controls. 

• Browse Linux literature and documentation. You can browse the Linux forum or read books online, such as The Linux Command Line: A Complete Introduction. 

• Command Line in Linux: Guided Project by Coursera. This beginner-level online course can be completed in just one hour. You’ll learn the basics of shell commands, Bash, and the command line. 

Linux certifications

Some employers may prefer or require specific Linux certifications, such as the CompTIA Linux+. This industry-recognized credential demonstrates your ability to manage, troubleshoot, and secure Linux systems, skills essential for many IT and cybersecurity jobs. The exam covers a broad range of topics, from basic command-line operations to more advanced system administration and security tasks.

To prepare for the exam, consider enrolling in an online, instructor-led course like the CompTIA Linux+ XK0-005 Specialization. This eight-course series is designed to help learners master essential Linux concepts while building the practical skills needed to pass the CompTIA Linux+ certification exam. You’ll cover everything from file systems and user account management to service configuration, access control, and real-life Linux administration scenarios.

The most common technical skill amongst Linux sysadmins and engineers is Python [2], [3].

Linux administration skills for resume

Cybersecurity skills are essential for system administrators. Best practices for cybersecurity can vary depending on the type of system your organization uses, so consider identifying commonly used infrastructures to study within your niche. For example, cloud security requires different user access management methods since users can access the system from different devices and locations. You can also focus on learning to work with popular technologies or vendors, such as Red Hat Enterprise Linux, SQL, and IBM Power Systems. 

Linux sysadmin resume bullet points

• Created Python scripts for task automation, continuous error detection, and system resource monitoring.

• Debugged and enhanced existing Python scripts for data importation into MySQL.

• Configured and maintained network routers and host-based firewalls to align with Linux system security practices.

• Implemented a custom security information and event management (SIEM) system using open-source software. 

Prepping for the LFCS exam? The Linux Foundation Certified System Administrator (LFCS) Specialization focuses on preparing to pass the LFCS exam through building core skills needed for day-to-day Linux administration. In as little as two months, you'll gain hands-on experience with real-world administrative tasks like configuring file systems, managing processes, using Bash scripting, and working with containers and virtual machines.

Additional recommendations for improving Linux admin skills

The resources below range from short, targeted projects to specialized training led by industry leaders. Each provides a shareable certificate and/or a hands-on exercise with industry-standard tools. 

• Create Python Linux Script to Generate a Disk Usage Report: Guided Project. This one-hour-long, hands-on project is best suited for intermediate learners. You’ll create a Python script and use a Python package to generate CSV reports and iterate through a directory structure. Upon completion, you’ll earn a shareable certificate for your resume.

• Linux and Private Cloud Administration on IBM Power Systems Specialization. This intermediate-level course series led by IBM focuses on Linux system administration in a private cloud environment. You’ll learn more about core cloud computing concepts like virtualization while working with Red Hat Enterprise Linux and IBM Power Systems. 

Linux for cybersecurity professionals

Linux plays a critical role in cybersecurity because of its widespread use in servers, networks, and security-focused tools. Many cybersecurity roles require working directly in Linux environments to perform tasks like hardening systems, monitoring traffic, and managing firewalls. Depending on your focus (such as network security, penetration testing, or compliance) you may want to build skills with specific tools or distributions, like Kali Linux, SELinux, or Red Hat Enterprise Linux.

Learning to secure Linux systems often involves understanding user access controls, configuring secure network services, and monitoring for unusual activity. You can also benefit from becoming familiar with concepts like file permissions, firewall rules, and authentication protocols.

Linux cybersecurity resume bullet points

• Secured Linux-based servers by configuring iptables and fail2ban to protect against brute-force attacks and unauthorized access.

• Conducted vulnerability assessments and implemented remediation strategies using tools like Lynis and OpenVAS.

• Developed and enforced SSH hardening policies, including key-based authentication and restricted user access.

• Automated log monitoring and alerting using shell scripts and the Linux audit daemon (auditd).

Interested in building your security skills with Linux? The Linux Security Basics and Beyond Specialization from Pearson focuses on practical, hands-on experience securing Linux environments. You'll learn to configure firewalls, manage authentication, and protect system files across various distributions, including Debian, Ubuntu, and CentOS.

Linux developer skills for resume

The Linux kernel, or base component, is written in C, making it a powerful programming language for developers to learn. Python, Ruby, and Bash are crucial for automating and scripting tasks. Like Linux engineers, Linux developers should familiarize themselves with industry-standard tools such as Amazon Web Services (AWS) and Google Cloud Platform (GCP). Git and GitHub are valuable tools for Linux developers, as version control systems are often utilized to track source code changes. 

Linux developer resume bullet points

• Configured network protocols and services in Red Hat Linux servers.

• Tested, debugged, and performed troubleshooting on Linux system configurations.

• Developed database management applications on the Linux platform.

• Built encryption and data integration software using Linux storage.

Recommendations for improving Linux developer skills

In the below list of resources, you’ll find an in-depth specialization that offers a certificate upon completion and a Guided Project you can use to practice more specific skills. 

• Open Source Software Development, Linux and Git Specialization. Learn to develop open-source software using key tools and technologies like Git, Bash, and command line tools. You could earn a shareable certificate from The Linux Foundation in about two months. 

• Integrated Development Environments in Linux: Guided Project. Practice your development skills in integrated environments with instructor-led guidance through this intermediate Guided Project. Tools you’ll use include Visual Studio Code, Eclipse, and KDevelop. 

Linux engineer skills for resume

Behind Python, troubleshooting and Bash (Bourne-again shell) are the most common skills for Linux engineers to have [3]. Knowledge of cloud computing, embedded systems, and automation is also advantageous, as many Linux engineers are responsible for cloud infrastructure scaling. You might also consider focusing on specific technologies and commonly used Linux engineering platforms. Examples include Docker, Amazon Web Services (AWS), Microsoft Azure, and Red Hat. 

Linux engineer resume bullet points

• Designed and implemented security policies for Red Hat servers.

• Developed test automation scripts in Perl and Python. 

• Designed, developed, and maintained GUIs on embedded hardware systems.

• Performed systems requirements analysis to identify opportunities to update and optimize servers and hardware.

Recommendations for improving Linux engineering skills

• Python, Bash and SQL Essentials for Data Engineering Specialization. In this beginner-level course series, you’ll use basic Python to design scripts and work with an SQL database within the Linux environment. 

• Akamai Network Engineering Professional Certificate. This Professional Certificate program comprises five beginner-level courses covering OS management, networking technology, SQL commands, and security management. You’ll practice debugging techniques and strengthen your knowledge of Linux and Unix system administration. 

• C Programming with Linux Specialization. In just two months, you can become a C programmer capable of developing and debugging code for optimizing computer memory. This beginner-level course series provides you with a shareable certificate upon completion. 

Sharpen your Linux skills with Coursera 

Getting certified in Linux to advance your career? Master key concepts to prepare for the exam while earning credentials for your study with Pearson's CompTIA Linux+ XK0-005 Specialization. In as little as two months, you can gain exam-level proficiency with Linux while you practice real-life administrative tasks.