Join David D. Levine for an in-depth discussion in this video Scripting with AWK, part of AWK Essential Training.
…As you've seen, AWK is extremely useful for quick interactive development…of small command line programs, to massage text data into different formats.…But if you find yourself performing the same task repeatedly,…you can save it into a file for later use.…For example, suppose you received the information for the contact page…of your bowling league in a form of a file like this.…Suppose you want to produce an HTML file, with a…bulleted listed of the officers titles, names, and clickable email addresses.…You could use the techniques described in this…course to extract this information without too much difficulty.…
But if you know you're going to get an update for this page once…a quarter, it would be a good idea to store the code in a file.…So you don't have to recreate it every time.…We call this file a shell script.…The information in this movie applies only to Unix systems including Mac OS X.…If you're on a Windows system, you can…perform some of the same tasks using batch script.…The first thing to do when creating a shell script is to put a…
Author
David D. Levine
Released
5/21/2014In this course, award-winning author and teacher David D. Levine shows you how to use AWK to read and write data in a variety of formats, produce reports, and automate repetitive tasks. He reviews the nuts and bolts of the language, such as field separators, pattern matching, variables, operators, expressions, and control structures; functions available for manipulating data; and integration with other programs like Excel.
- Determine what AWK is.
- Recognize how to write an AWK program.
- Determine how to use AWK command-line flags.
- Identify how to specify field and record separators with variables.
- Distinguish how to change a CVS file to a tab-separated one.
- Break down how to work with operators and arrays.
- Discover how to format output.
- Interpret how to string data with functions.
Skill Level Intermediate
Duration
Views
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Introduction
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Welcome59s
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1. What Is AWK?
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What is AWK?3m 11s
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2. AWK Command Line Basics
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Writing an AWK program2m 51s
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Using AWK command-line flags6m 18s
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3. Understanding Records and Fields
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4. Understanding Variables and Operators
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5. A Quick Introduction to Regular Expressions
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Regular expression basics5m 19s
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6. Using Control Structures
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Building control structures4m 14s
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Creating an HTML table4m 45s
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7. Formatting the Output
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8. Functions and Arrays
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Manipulating strings7m 28s
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Using associative arrays4m 55s
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9. Combining AWK with Other Tools
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Using pipes7m 6s
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Scripting with AWK4m 56s
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Challenge: Perform a join1m 13s
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Solution: Perform a join2m 55s
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Conclusion
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Goodbye1m 10s
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Video: Scripting with AWK