9 - Chapter 4 - Working with Text Files

Using Common Text File–Related Tools
Showing File Contents with cat
Displaying the First or Last Lines of a File with head and tail
Filtering Specific Columns with cut
Sorting File Contents and Output with sort
Counting Lines, Words, and Characters with wc
A Primer to Using Regular Expressions
Using Line Anchors
Using Escaping in Regular Expressions
Using Wildcards and Multipliers
Most Significant Regular Expressions
Using grep to Analyze Text
Working with Other Useful Text Processing Utilities