fdups

#! /bin/sh

# fdups - Finds duplicated files in given path
# Copyright (C) 2019 Matouš Jan Fialka, <http://mjf.cz/>
# Released under the terms of "The MIT License"

FDUPS_SUMPROG="${FDUPS_SUMPROG:-sha512sum}"

fdups1() {
	find "$1" ! -type d -printf '%s\n' |
	sort -n |
	uniq -d |
	xargs -I@@ -n1 find "${1:-.}" -type f ! -size 0 -a -size @@c -exec "$FDUPS_SUMPROG" {} \; |
	sort -k1,32 |
	uniq -w32 -d --all-repeated=separate |
	sed 's/^[^ ]\+ \+//'
}

for path in ${@:-.}; do
	fdups1 "$path"
	printf -- '\n'
done 2>/dev/null

# vi:ft=sh