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 any single character.  

Example:

`x.z` matches `"xyz"`, etc., but within bracket expressions, the dot character matches a literal dot, e.g., `[x.y]` matches only `"x"`, `"."`, or `"y"`


# Metachar `[ ]`  	

Matches a single character that is contained within the brackets. 

Example:

`[xyz]` matches `"x"`, `"y"`, or `"z"`, where `[a-z]` specifies a range which matches any lowercase letter from `"a"` to `"z"`. Note that the `-` character is treated as a literal character if it is the last or the first e.g., `[-xyz]` 


# Metachar `[^ ]` 
 
Matches a single character that is not contained within the brackets. 

Example:

`[^xyz]` matches any character other than `"x"`, `"y"`, or `"z"`. 

# Metachar  `^ ` 

Matches the starting position within the string. 

Example:

`^[xterm]` matches any string that starts with `xterm`.

# Metachar `# Metachar `. `
Matches any single character.  

Example:

`x.z` matches `"xyz"`, etc., but within bracket expressions, the dot character matches a literal dot, e.g., `[x.y]` matches only `"x"`, `"."`, or `"y"`


# Metachar `[ ]`  	

Matches a single character that is contained within the brackets. 

Example:

`[xyz]` matches `"x"`, `"y"`, or `"z"`, where `[a-z]` specifies a range which matches any lowercase letter from `"a"` to `"z"`. Note that the `-` character is treated as a literal character if it is the last or the first e.g., `[-xyz]` 


# Metachar `[^ ]` 
 
Matches a single character that is not contained within the brackets. 

Example:

`[^xyz]` matches any character other than `"x"`, `"y"`, or `"z"`. 

# Metachar  `^ ` 

Matches the starting position within the string. 

Example:

`^[xterm]` matches any string that starts with `xterm`.

  
 
Matches the ending position of the string or the position just before a string-ending newline. 
 
Example:
 
`[mb]at$` matches `"mat"` and `"bat"`, but only at the end of the string or line.


# Metachar  `( )`  

The string matched within the parentheses can be recalled later, also called a `block` or capturing `group`. 

Example:

`([0-9]+)([a-z]+)` the first  group matches atleast one digit and the second group atleast one alphabet.

# Metachar `*` 

Matches the preceding element zero or more times. 

Example:

`xy*z` matches `"xy"`, `"xyz"`, `"xyyz"`, etc. 

# Metachar `{m,n}`  

Matches the preceding element at least `m` and not more than `n` times. 

Example:

`Y{2,3}` matches only `"YY"`, `"YYY".`


# Metachar `. `
Matches any single character.  

Example:

`x.z` matches `"xyz"`, etc., but within bracket expressions, the dot character matches a literal dot, e.g., `[x.y]` matches only `"x"`, `"."`, or `"y"`


# Metachar `[ ]`  	

Matches a single character that is contained within the brackets. 

Example:

`[xyz]` matches `"x"`, `"y"`, or `"z"`, where `[a-z]` specifies a range which matches any lowercase letter from `"a"` to `"z"`. Note that the `-` character is treated as a literal character if it is the last or the first e.g., `[-xyz]` 


# Metachar `[^ ]` 
 
Matches a single character that is not contained within the brackets. 

Example:

`[^xyz]` matches any character other than `"x"`, `"y"`, or `"z"`. 

# Metachar  `^ ` 

Matches the starting position within the string. 

Example:

`^[xterm]` matches any string that starts with `xterm`.

# Metachar `# Metachar `. `
Matches any single character.  

Example:

`x.z` matches `"xyz"`, etc., but within bracket expressions, the dot character matches a literal dot, e.g., `[x.y]` matches only `"x"`, `"."`, or `"y"`


# Metachar `[ ]`  	

Matches a single character that is contained within the brackets. 

Example:

`[xyz]` matches `"x"`, `"y"`, or `"z"`, where `[a-z]` specifies a range which matches any lowercase letter from `"a"` to `"z"`. Note that the `-` character is treated as a literal character if it is the last or the first e.g., `[-xyz]` 


# Metachar `[^ ]` 
 
Matches a single character that is not contained within the brackets. 

Example:

`[^xyz]` matches any character other than `"x"`, `"y"`, or `"z"`. 

# Metachar  `^ ` 

Matches the starting position within the string. 

Example:

`^[xterm]` matches any string that starts with `xterm`.

  
 
Matches the ending position of the string or the position just before a string-ending newline. 
 
Example:
 
`[mb]at＄` matches `"mat"` and `"bat"`, but only at the end of the string or line.


# Metachar  `( )`  

The string matched within the parentheses can be recalled later, also called a `block` or capturing `group`. 

Example:

`([0-9]+)([a-z]+)` the first  group matches atleast one digit and the second group atleast one alphabet.

# Metachar `*` 

Matches the preceding element zero or more times. 

Example:

`xy*z` matches `"xy"`, `"xyz"`, `"xyyz"`, etc. 

# Metachar `{m,n}`  

Matches the preceding element at least `m` and not more than `n` times. 

Example:

`Y{2,3}` matches only `"YY"`, `"YYY".`


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

Basic Regular Expressions (BRE)

Metachar `.`

Metachar `[ ]`

Basic Regular Expressions (BRE)

Metachar .

Metachar [ ]

Metachar `.`

Metachar `[ ]`