Transitioning into DevOps requires more than just knowing tools; it demands a deep comfort with the Linux environment where these tools live. Before diving into complex CI/CD pipelines or container orchestration, you must master the art of interacting with the system efficiently. This selection of hands-on labs from the LabEx DevOps path focuses on the foundational shell techniques that professional engineers use every day to automate tasks and troubleshoot systems.
Standard Input, Output, and Error
Difficulty: Beginner | Time: 15 minutes
In this lab, you will learn how Linux handles data streams. You will experiment with Standard Output and Standard Error to understand how commands communicate with the terminal.
Practice on LabEx → | Tutorial →
Viewing Files with Head Tail and Cat
Difficulty: Beginner | Time: 20 minutes
In this lab, you will learn how to efficiently view file contents in Linux using cat, head, and tail. You will practice displaying full files, viewing specific parts, and monitoring logs in real-time.
Practice on LabEx → | Tutorial →
Creating Custom Variables
Difficulty: Beginner | Time: 20 minutes
In this lab, you will learn how to create, use, and export custom environment variables in Linux. You will understand the difference between local and environment variables and how to pass data to child processes.
Practice on LabEx → | Tutorial →
Command Substitution
Difficulty: Beginner | Time: 15 minutes
In this lab, you will learn how to use command substitution in Linux. You will practice using the output of the date command as an argument for the mkdir command to create dynamic directory names.
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Command History
Difficulty: Beginner | Time: 15 minutes
In this lab, you will learn how to efficiently manage and reuse command history in Linux. You will practice viewing past commands, re-running the last command, and searching through your history to save time and effort.
Practice on LabEx → | Tutorial →
Mastering these five areas transforms the command line from a daunting interface into a powerful ally. By completing these labs, you aren't just learning commands; you are building the muscle memory required for professional software operations. Ready to elevate your technical toolkit? Start these hands-on exercises on LabEx today and build your DevOps career on a rock-solid foundation.
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