Gain insights into data processing using Bash, sed, awk, and RegEx. Explore sorting, searching, replacing, and optimizing data tasks interactively with animated videos, projects, quizzes, and tasks.

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2500+ students have taken this innovative project-based data learning course (includes video lectures). It demonstrates the use of Bash shell (Bash, sed and awk including RegEx) in processing textual data. It can help to learn to sort, search, match, replace, clean and optimize various aspects of data with Bash Shell. The target audience (students, researchers, scientists, journalists, data miners, developers) didn't have to go through any tough learning curve. This course also should have helped RedHat, SuSE and Ubuntu Linux learners and Data Science enthusiasts.  Regularly updated, new projects to come!

- Learn Bash commands interactively
- Projects with own stories and conclusive decisions
- Animated video lectures (for visual learners)
- Demonstrations
- Quizzes
- Learning tasks

Bloom's taxonomy (remember, understand, apply, analyze, evaluate and create) in developing your Linux skills. Learn Scientific Programming! scientificprogramming.io

Learn Data Science with Bash Shell

# SED delete

A useful command that deletes line that matches the restriction: "d."
For example, if you want to chop off the header of a mail message, which is everything up to the first blank line, use: 

~~~~~~
$ sed '1,/^$/d' file
~~~~~~

# SED print

If sed was not started with an `"-n"` option, the `"p"` command will duplicate the input.

~~~~~~
sed '/^$/ p' file
~~~~~~

Adding the "`-n`" option turns off printing unless you request it.

# SED grouping

The curly braces, `"{"` and `"}"` are used to group the commands. 

Previously, we have showed you how to remove comments starting with a `"#."` If you wanted to restrict the removal to lines between special `"begin"` and `"end"` key words, we use: 

~~~~~~
sed -n '
	/begin/,/end/ {
	     s/#.*//
	     s/[ ^I]*$//
	     /^$/ d
	     p
	}
' file
~~~~~~


Course Introduction

Project 1: Analyzing the 'US News' University Ranking Data

Project 2: Facebook Data Mining

Project 3: Australian Cities Crime Statistics

Project 4: Shakespearean-era plays and poems data mining

Bash Tutorials

REGEX Tutorials

AWK Tutorials

SED, GREP and Find Tutorials

Beyond the Text Files! Enter into the Big Data Landscape - Concepts

Conclusion

SED delete, print and grouping

SED delete