SED Essential Training

Course details

SED is the one of the original command line tools for parsing and transforming data on Unix, Linux, and Macintosh machines. David D. Levine helps you unlock the power of SED's compact syntax in these lessons, which cover extracting, transforming, and manipulating data in files and data streams. He reviews the basic commands, including one you'll never want to forget, and shows how to work with regular expressions. The course also covers SED's more advanced programming features, which allow you to write simple programs and manage multiline pattern space, flow, and the hold buffer with a few simple keystrokes. Start here to learn the essentials of this versatile tool.

Learning objectives
Understanding input, output, files, and pipes
Modifying the "s" command
Using character classes and quantifiers
Controlling printing
Reading and writing files
Appending, inserting, and editing entire lines
Writing programs in SED
Using advanced programming commands

Concepts

0. Introduction

01 - Welcome
02 - What is sed
03 - What you should know before watching this course
04 - Using the exercise files

1. Sed Command-Line Basics

05 - Using the most important sed command
06 - Understanding input, output, files, and pipes
07 - Quoting command-line arguments
08 - Modifying the s command

2. Regular Expressions

09 - Introducing regular expressions
10 - Using character classes and quantifiers
11 - Using & and n

3. Sed Command-Line Flags

12 - Controlling printing with -n and the p modifier
13 - Specifying multiple commands with -e and -f
14 - Challenge - Change ten thousand men to one woman
15 - Solution - Change ten thousand men to one woman

4. More sed Commands

16 - Understanding addresses and address ranges
17 - Printing lines with p
18 - Deleting lines with d
19 - Reading and writing files with r and w
20 - Performing transformations with y
21 - Appending, inserting, and changing entire lines with a , i, and c
22 - Challenge - Write the main() function from array.c to file main.c
23 - Solution - Write the main() function from array.c to file main.c

5. Writing Programs in sed

24 - Grouping commands with and
25 - Getting the next line with n
26 - Exiting with q and d
27 - Commenting with # debugging with l and

6. Advanced Programming Concepts

28 - Managing multi-line pattern space with N , D, and P
29 - Flow control with - , b, and t
30 - Managing the hold buffer with g , G , h , H, and x
31 - Challenge - Convert first three words of each line to all caps
32 - Solution - Convert first three words of each line to all caps

Goodbye

33 - Next steps

SED Essential Training

Authors

David D. Levine