Bash script to prune inactive Minetest accounts from a server (script by VanessaE)

prune-inactive-accounts.sh

#!/bin/bash

cd /home/minetest/.minetest/worlds/
for j in $(ls); do
        echo /home/minetest/.minetest/worlds/$j
        cd /home/minetest/.minetest/worlds/$j

	rm -rf players-tmp
	mv players players-tmp
	mkdir players
	chown minetest:minetest players

        for i in $(cat auth.txt|grep ",interact" ); do
                f=$(echo $i|cut -f 1 -d ":")
		if [ -e "players-tmp/$f" ] ; then
	                mv players-tmp/$f players
		fi
        done

	echo -n "Number of good player folders: "
	ls players|wc|tr -s " " |cut -f 2 -d " "

	echo -n "Number of dead, deleted player folders: "
	ls players-tmp|wc|tr -s " " |cut -f 2 -d " "

	# Delete dead accounts

	n=$(cat auth.txt|wc|tr -s " " |cut -f 2 -d " ")

	grep ",interact" auth.txt >auth.txt2
	n2=$(cat auth.txt2|wc|tr -s " " |cut -f 2 -d " ")

	echo "Number of live entries in auth.txt: "$n2
	echo "Number of dead entries: "$((n-n2))

	mv auth.txt2 auth.txt
	chown minetest:minetest auth.txt

	rm -rf players-tmp
        cd /home/minetest/.minetest/worlds
done