hardlinks duplicates in steam directories, is very careful not to link too much

steam-dedup.sh

#!/bin/bash

set -x

function hlink {
	set -x
	name="$2"/$(echo $1 | grep -oPe '(?<=/steamapps/).*$')
	if test -f "$name"; then
		rdfind -makeresultsfile false -makehardlinks true "$1" "$name"
	fi
}
export -f hlink

a=$(echo "$1" | sed 's/\/$//')
b=$(echo "$2" | sed 's/\/$//')

find "$a"/steamapps -type f -exec bash -c "hlink '{}' $b/steamapps" \;