Originally designed to determine the entropy of a file, this Rust program counts the character frequency from stdin
cargo install entro
``` Program to count character frequency from STDIN
Usage: entro [OPTIONS]
Options:
-x, --hex Print in hex
-l, --length
<br>The
-xflag prints the key for the character in hexadecimal
<br>The
-l` option modifies the maximum length of the histogram (all data is clamped within this value)