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Course 4 - Learning Linux Shell Scripting | Episode 5: Shell Scripting for Web Automation, Data Retrieval, and Parsing
In this lesson, you’ll learn about: Tangled Web — Automating Web Interaction with Shell Scripting
This section focuses on how shell scripting and command-line tools can be used to interact with and automate web-related tasks. It explains how to retrieve, parse, send, and monitor web data using the HTTP protocol through utilities like wget, curl, and links. 🌐 Core Command-Line Utilities for Web Interaction • wget (Web Download Utility):
This section teaches how to automate web-related tasks such as downloading, parsing, monitoring, and submitting data directly from the command line—eliminating the need for manual browsing.
Analogy:
Learning this module is like programming a set of digital “bots” — each tool (curl, wget, links) acts as a specialized agent that collects, filters, and interacts with online data to create fully automated web workflows.
You can listen and download our episodes for free on more than 10 different platforms:
https://linktr.ee/cybercode_academy
This section focuses on how shell scripting and command-line tools can be used to interact with and automate web-related tasks. It explains how to retrieve, parse, send, and monitor web data using the HTTP protocol through utilities like wget, curl, and links. 🌐 Core Command-Line Utilities for Web Interaction • wget (Web Download Utility):
- Download files and web pages with options to resume interrupted downloads (-C) and set retry limits (-t).
- Control bandwidth usage (--limit-rate) and quotas (--quota, -Q).
- Perform full website mirroring (--mirror, -L, -R).
- Support authentication via --user, --password, or secure password prompts (--ask-password).
- Convert web pages into plain text by stripping HTML tags.
- Use the -dump option to display page content and list all hyperlinks under a “References” section.
- Handle HTTP, HTTPS, and FTP data transfers.
- Execute POST requests, manage cookies, and use authentication (-u).
- Save files using remote (-O) or custom (-o) filenames.
- Resume downloads (-C), set referrers (--referrer), and customize user agents (-A).
- Retrieve only HTTP headers (-I, --head) to verify content without downloading full files.
- Extract and reformat specific information from web pages by combining links -no-list, grep, and sed.
- Write scripts to extract image URLs (both absolute and relative) and automatically download them with curl.
- Automate photo album creation using a for loop and the ImageMagick convert utility to create thumbnails (e.g., 100 px).
- Generate an index.html file containing image tags and layout automatically.
- Use a dictionary API (e.g., Merriam-Webster) with curl to fetch data.
- Apply grep, sed, and nl to extract and format word definitions.
- Collect all URLs recursively using links -traversal and check their status codes with curl -I to find dead links.
- Monitor websites for content updates by fetching new and old versions (recent.html, last.html) and comparing them with diff.
- Automate form submissions (like logins) using POST requests.
- Send variable=value pairs with curl -d or wget --post-data and process the response.
This section teaches how to automate web-related tasks such as downloading, parsing, monitoring, and submitting data directly from the command line—eliminating the need for manual browsing.
Analogy:
Learning this module is like programming a set of digital “bots” — each tool (curl, wget, links) acts as a specialized agent that collects, filters, and interacts with online data to create fully automated web workflows.
You can listen and download our episodes for free on more than 10 different platforms:
https://linktr.ee/cybercode_academy
View all episodes
By CyberCode AcademyIn this lesson, you’ll learn about: Tangled Web — Automating Web Interaction with Shell Scripting
This section focuses on how shell scripting and command-line tools can be used to interact with and automate web-related tasks. It explains how to retrieve, parse, send, and monitor web data using the HTTP protocol through utilities like wget, curl, and links. 🌐 Core Command-Line Utilities for Web Interaction • wget (Web Download Utility):
This section teaches how to automate web-related tasks such as downloading, parsing, monitoring, and submitting data directly from the command line—eliminating the need for manual browsing.
Analogy:
Learning this module is like programming a set of digital “bots” — each tool (curl, wget, links) acts as a specialized agent that collects, filters, and interacts with online data to create fully automated web workflows.
You can listen and download our episodes for free on more than 10 different platforms:
https://linktr.ee/cybercode_academy
This section focuses on how shell scripting and command-line tools can be used to interact with and automate web-related tasks. It explains how to retrieve, parse, send, and monitor web data using the HTTP protocol through utilities like wget, curl, and links. 🌐 Core Command-Line Utilities for Web Interaction • wget (Web Download Utility):
- Download files and web pages with options to resume interrupted downloads (-C) and set retry limits (-t).
- Control bandwidth usage (--limit-rate) and quotas (--quota, -Q).
- Perform full website mirroring (--mirror, -L, -R).
- Support authentication via --user, --password, or secure password prompts (--ask-password).
- Convert web pages into plain text by stripping HTML tags.
- Use the -dump option to display page content and list all hyperlinks under a “References” section.
- Handle HTTP, HTTPS, and FTP data transfers.
- Execute POST requests, manage cookies, and use authentication (-u).
- Save files using remote (-O) or custom (-o) filenames.
- Resume downloads (-C), set referrers (--referrer), and customize user agents (-A).
- Retrieve only HTTP headers (-I, --head) to verify content without downloading full files.
- Extract and reformat specific information from web pages by combining links -no-list, grep, and sed.
- Write scripts to extract image URLs (both absolute and relative) and automatically download them with curl.
- Automate photo album creation using a for loop and the ImageMagick convert utility to create thumbnails (e.g., 100 px).
- Generate an index.html file containing image tags and layout automatically.
- Use a dictionary API (e.g., Merriam-Webster) with curl to fetch data.
- Apply grep, sed, and nl to extract and format word definitions.
- Collect all URLs recursively using links -traversal and check their status codes with curl -I to find dead links.
- Monitor websites for content updates by fetching new and old versions (recent.html, last.html) and comparing them with diff.
- Automate form submissions (like logins) using POST requests.
- Send variable=value pairs with curl -d or wget --post-data and process the response.
This section teaches how to automate web-related tasks such as downloading, parsing, monitoring, and submitting data directly from the command line—eliminating the need for manual browsing.
Analogy:
Learning this module is like programming a set of digital “bots” — each tool (curl, wget, links) acts as a specialized agent that collects, filters, and interacts with online data to create fully automated web workflows.
You can listen and download our episodes for free on more than 10 different platforms:
https://linktr.ee/cybercode_academy