clementi / entropia

Calculate the information entropy of some text

entropia

Calculate the information entropy of some text

Installation

You can install entropy either by using Cargo, or by downloading a binary from the Releases page.

Cargo

Run this in your shell:

$ cargo install entropia

Binaries

See the Releases page.

Usage

Entropy takes no arguments. It captures text on stdin and reports the information entropy of that text. For example:

$ cat file | entropy
2362.4587346565673

$ secret token | entropy
138.9089067264194

$ echo "Hello world" | entropy
69.68825906469124

$ entropy
Hello world
69.68825906469124