The intersection and set difference (A-B) on text files
Intersection and set difference operations are commonly used in mathematical classes on set theory. However, similar operations on strings are also very helpful in some scenarios.
Getting ready
The comm command is a utility to perform a comparison between the two files. It has many good options to arrange the output in such a way that we can perform intersection, difference, and set difference operations.
- Intersection: The intersection operation will print the lines that the specified files have in common with one another
- Difference: The difference operation will print the lines that the specified files contain and that are not the same in all of those files
- Set difference: The set difference ...
Get Linux Shell Scripting Cookbook - Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
