PROGRAM DESCRIPTION: In this assignment, you will write sed …

PROGRAM DESCRIPTION: In this assignment, you will write sed and gawk commands to accomplish certain requested functionality. Given the many powerful features of sed and gawk, you are provided with a link to a tutorial for sed as well as gawk to assist you in completing this assignment.

Answer

PROGRAM DESCRIPTION: This assignment focuses on writing sed and gawk commands to achieve specific functionality. Sed and gawk are versatile and powerful tools for text processing and manipulation. To help you complete this assignment, a tutorial for sed and gawk will be provided.

Sed (Stream Editor) is a command-line utility for text processing and editing. It reads input line by line, applies certain rules, and then produces the modified output. Sed commands can be used to perform tasks such as substitution, deletion, insertion, and appending text to specific lines or patterns in a file.

Gawk (GNU AWK) is an extension of the original AWK language and is widely used for text processing and data manipulation. Gawk provides advanced features like pattern matching, data filtering, and data aggregation using regular expressions and user-defined functions.

For this assignment, you will be required to write sed and gawk commands to accomplish specific tasks. These tasks might include:

1. Substituting text: Using sed, you may need to replace specific patterns or words with other text in a file. Sed uses regular expressions to define patterns and replacement strings.

2. Deleting lines: With sed, you can delete lines from a file based on specific conditions or patterns. This might involve removing lines containing certain words or matching a particular regular expression.

3. Inserting lines: Sed can also add new lines to a file, either at specific line numbers or based on a pattern match. You might need to insert new lines before or after specific lines or patterns.

4. Appending text: Similar to inserting, sed commands can append text to the end of specific lines or patterns in a file. This can be useful for adding extra information or comments.

5. Filtering and processing data: Gawk is especially useful for extracting specific data from files or filtering data based on criteria. You might need to extract certain fields from a CSV file, perform mathematical operations on numeric data, or apply conditional expressions to filter data.

6. Aggregating data: Gawk supports grouping and summarizing data using built-in functions like sum, average, count, and maximum/minimum. You might need to calculate statistics for a set of data or perform data aggregation based on specific criteria.

To complete this assignment successfully, it is essential to familiarize yourself with the basic syntax and common commands of sed and gawk. The provided tutorial will serve as a valuable resource to help you understand these tools and their various capabilities.

Please note that sed and gawk commands can be challenging to write correctly, and testing your commands on sample input files is highly recommended.