#!/usr/bin/env fish

# syntax: moov files... regex target

set regex $argv[-2]
set target $argv[-1]
set files $argv[1..-3]

for file in $files
	set matches (string match -ar "$regex" "$file")
	set target_path "$target"

	set counter 0
	for match in $matches
		set target_path (string replace -a '$'"$counter" "$match" "$target_path")
		set counter (math $counter + 1)
	end

	mv "$file" "$target_path"
end