byteshuf is a linux tool that allows shuffling extremely large files or directories of files, using the algorithm behind the terashuf project. btyeshuf is a single standalone .c file, and can be built via make N=..., where N is the size of each byte chunk. Instead of shuffling lines of text, we shuffle groupings of N-bytes.

Arguments

Name	Flag	Purpose
verbose	-v	Verbose reporting on the progress being made
directory	-d	Directory strictly containing files we intend to shuffle
input	-i	Location of the sole file we intend to shuffle
output	-o	Output path. Each fileoutput file has a .%d suffix appended
per-file	-n	Number of N-byte samples to output per final output file
chunk-size	-s	Number of N-byte samples to output per intermediate output file
read-header	-r	Skip fixed-size headers, by skipping x-bytes on all inputs files
write-header	-w	Writes a zero'ed out header of size x-bytes to each final output file