Mastering Linux Text Processing with Grep, Sed and Awk
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Mastering Linux Text Processing with Grep, Sed and Awk – by Martijn Vissers
Updated July 2026 – This free Udemy course teaches the three core Linux text‑processing utilities that power daily log analysis, data cleanup, and one‑liner reporting. Whether you search for a free Linux text processing course, want a Udemy course on grep, sed, awk, or simply wish to learn command‑line data handling online, the curriculum delivers practical skills that translate directly into faster debugging, automated reporting, and a stronger DevOps toolkit.
What You'll Learn
- Build efficient log‑filtering pipelines using grep with basic flags, glob patterns, and extended regular expressions.
- Master in‑place file editing and stream transformations with sed, covering substitutions, range selections, and multi‑command scripts.
- Learn field‑based data extraction, conditional processing, and arithmetic operations in awk to generate structured reports from CSV or log files.
- Understand how grep, sed, and awk integrate into real‑world Linux workflows such as CI/CD output parsing and configuration management.
- Create custom one‑liners that replace manual GUI steps, boosting productivity for daily sysadmin tasks.
- Implement reusable shell functions that combine the three tools for complex data pipelines.
- Apply the learned concepts to Vim’s
:excommands, extending your terminal expertise beyond the three utilities. - Analyze performance implications of text‑processing pipelines and choose the right tool for each scenario.
Course Details
- Instructor: Martijn Vissers
- Rating: 3.3 stars
- Language: English (en‑US)
- Enrolled students: 20,537
All lessons are delivered as on‑demand video, allowing you to pause, rewind, and practice at your own pace.
What This Course Covers
Introduction
- Overview of Linux command‑line philosophy and why text processing matters.
- Comparison of grep, sed, and awk capabilities and typical use‑cases.
- Setting up a terminal environment with tmux and slide integration for live demos.
Grep: Basics + Globbing & Regex
- Simple pattern matching with flags
-i,-v,-r, and-E. - Using glob patterns and character classes to narrow searches.
- Advanced regular expressions for multi‑line and word‑boundary matching.
- Practical examples: filtering Apache logs, extracting error codes, and quick file audits.
Sed: Substitutions → Deleting & Inserting → Advanced Ranges
- Basic
s///substitution syntax and delimiter alternatives. - Deleting lines, inserting headers, and working with address ranges.
- In‑place editing with the
-iflag and handling backup files safely. - Building multi‑command sed scripts for batch configuration updates.
Awk: Fundamentals → Conditionals, Math & Custom Output → Programming Language
- Field separators,
$1,$2, …$NF, and automatic variable handling. - Conditional statements, loops, and built‑in functions for statistical calculations.
- Arrays for grouping, counting, and generating summary tables.
- Writing full Awk programs with
BEGIN/ENDblocks and custom functions.
Ex: The Line Editor Behind Vim
- Historical context of the
exeditor and its relation tosed. - Translating sed/awk knowledge into Vim’s
:commands for on‑the‑fly edits. - Real‑world scenario: cleaning up a large source file directly from Vim.
Final Wrap‑Up
- Recap of key concepts and recommended learning path for deeper shell scripting.
- Guidance on integrating these tools into CI pipelines and automated monitoring scripts.
- Resources for further practice, including open‑source log datasets and CSV samples.
Who Should Take This Course
- Sysadmins and DevOps engineers who need to parse log files and automate server maintenance.
- Linux power users looking to replace repetitive GUI tasks with concise terminal one‑liners.
- Developers who debug application output, generate reports, or need quick data extraction in scripts.
- Students and hobbyists interested in mastering core command‑line utilities for personal projects.
- IT professionals transitioning to automation roles where shell‑based data processing is essential.
Prerequisites
- No prior experience needed — this course is beginner‑friendly.
- Basic familiarity with the Linux terminal (navigation, file manipulation) is recommended.
- Optional: Understanding of regular expressions will accelerate learning but is not required.
Why Enroll in This Course
Enrolling gives you immediate access to a free coupon that makes the entire Udemy course 100 % off for a limited time. The discount expires soon, so take advantage of the offer while it lasts. Compared with other text‑processing tutorials, this course combines concise video lessons, real‑world log examples, and a focus on practical one‑liners that you can apply the same day. The hands‑on approach ensures you finish the course with a portfolio of reusable scripts rather than just theory.
Course Highlights
- Lifetime access to all video lectures and downloadable resources.
- Self‑paced learning – study whenever you have a spare terminal window.
- Certificate of completion to showcase your new Linux text‑processing skills.
- Real‑world examples using server logs, CSV files, and CI/CD output.
- Mobile‑friendly playback so you can review concepts on a phone or tablet.
- Practical exercises after each module to reinforce learning through doing.
Frequently Asked Questions
Q: Is this course really free?
A: Yes. A free Udemy coupon reduces the price to $0, granting full access to every lecture, exercise, and the completion certificate at no cost.
Q: What will I learn in this Linux text processing course?
A: You will master grep, sed, and awk
Affiliate link — we may earn a commission
Affiliate link — we may earn a commission. Learn more
