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

# Metachar  `?`

Matches the preceding element zero or one time. 

Example:

`xy?z` matches only `"xy"` or `"xyz"`.

# Metachar  `+`

Matches the preceding element one or more times. 

Example:

`xy+z` matches `"xyz"`, `"xyyz"`,  and so on, but not `"xz"`.

# Metachar `|` 

Aternation operator, matches either the expression before or the expression after the operator. 

## Example 1:

`(abc)|(xyz)` matches `"abc"` or `"xyz"` 

## Example 2:

`(data)|(information)` matches `"data"` or `"information"`.

See also the grouping meta char `( )` described above.

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

Extended Regular Expressions (ERE)

Metachar `?`

Extended Regular Expressions (ERE)

Metachar ?

Metachar `?`