Network

Reveal the stored password of a wireless network Windows has connected to, using netsh wlan show profile key=clear.

Check whether your Mac can reach a website and how fast, with a five-packet ping instead of an endless stream.

Get the internet-facing IP your router uses, right in the terminal.

Measure ping, download and upload speed without opening a browser.

Encrypt your DNS lookups with a DoH server so your ISP cannot easily see which sites you visit.

Send a quick HTTP request from the terminal to check whether a site responds and what status it returns.

Grab a file straight to disk over HTTP(S), following redirects, with a single curl invocation.

Remove a saved wireless profile so Windows stops auto-connecting to a network, using netsh wlan delete profile.

Route command-line tools like curl, wget, git, and pip through an HTTP or SOCKS proxy using http_proxy, https_proxy, and all_proxy.

Serve a directory as a download page that other devices can open in a browser.

Grab any file from the web straight into the current folder — no browser needed.

Send a fixed number of ICMP echo requests and read the RTT min/avg/max summary and packet loss.