Learn GNU Wget from the basics to production-grade: prerequisites & environment setup, the history from Geturl/1996 to Wget 1.25 & Wget2, core concepts & non-interactive architecture, basic file downloads, resume retry & download control, batch download & multiple files, FTP & file transfer, HTTP request headers & cookies, wgetrc configuration, recursive download & spider, website mirroring, filtering & directory structure, proxies & networking, HTTPS TLS & certificates, authentication & security best practices, timestamping & incremental optimization, scripting & automation, WARC & web archiving, troubleshooting & debugging, Wget vs Wget2 & modern features, ecosystem & tooling integration, production readiness & security hardening, and a recap of best practices & final reflections across a total of 23 episodes.
Before downloading your first file, there are a few basic skills and tools you need to prepare: comfortable navigation in the terminal, an understanding of HTTP and networking fundamentals, and confirmation that GNU Wget 1.25.x is installed and ready to use in your own environment.

Tracing wget's journey from its early beginnings as Geturl, written by Hrvoje Niksic in 1996, to becoming the de-facto standard non-interactive downloader for over 25 years, and understanding the real problems it solves in the DevOps world.

Dissecting wget's non-interactive model: the complete flow from URL parsing, DNS resolution, and TLS connection, to writing files to disk, plus the role of wgetrc, robots.txt, exit codes, and controlling log output.

Running your first file download: saving files with the name from the URL, renaming with -O, streaming output to stdout with -O -, and controlling the progress bar and logs with -q, -nv, and -a.

Handling interrupted downloads: resuming them with -c, configuring retries with --tries, controlling timeouts and transfer speed, and running downloads in the background with -b.

Downloading many files at once from a URL list: file input with -i, setting the destination directory with -P and -x, and using the file name from server headers with --content-disposition.

Downloading files from FTP and FTPS servers with wget, authenticating via --user and --password, recursively downloading whole directories, and wildcard globbing that only applies to FTP, not HTTP.

Shaping HTTP requests the way you want: custom headers, a replaceable User-Agent, sending POST data, and managing cookies and Basic Auth to access content that requires login.

Storing wget's default policies in a configuration file: global and per-user locations, option syntax, priority over the command line, and dynamic configuration execution with -e at runtime.

Crawling inside a site with recursive download, controlling depth and directory limits, respecting robots.txt, and using spider mode to check link availability without downloading content.
