Best command-line tools

Send ICMP probes to many hosts from one program

Connect sockets, streams and terminals for network diagnostics

Command-line vector-data conversion and transformation

Command-line transfers with mirroring and parallel jobs

Explicit DNS queries over plain and encrypted transports

Move files between a terminal and a phone using a QR code

Query DNS records from lists with resolver and wildcard controls

Detect and convert text-file encodings

Automatically choose a Whois server for a terminal lookup

FTP browsing and batch transfers for terminal workflows

PDF assembly through graphical and command-line tools

A DNS CLI with multiple transports and output formats

Command-line copying to, from and between Azure storage accounts

Probe an HTTP server repeatedly from the command line

Windows batch converters with command-line support

Query and convert structured files with one CLI syntax

Convert compatible quantities and inspect unit definitions from a CLI

A configurable command-line player with scripting support

A small public-IP and request-header lookup

Codec-level VP8 and VP9 encoding through standalone tools

An independent C++ client for Speedtest measurements

Base Linux utilities for interfaces, routes and connection inspection

GNU's collection of common network clients and diagnostic commands

Interpret and process PDF and PostScript documents