Fetches from the grafana docker logs the days a user has logged in

get-usage.sh

#!/bin/bash

# This file checks the docker logs for a container named "grafana" and
# checks how many days a user has logged in

[ -z "$1" ] && echo "inform user" && exit 0

docker logs grafana 2> /dev/null | grep $1 > /tmp/user-log

cat /tmp/user-log | egrep -o '[0-9]{1,4}-[0-9]{1,2}-[0-9]{1,2}' | sort | uniq

count=$(cat /tmp/user-log | egrep -o '[0-9]{1,4}-[0-9]{1,2}-[0-9]{1,2}' | uniq | wc -l)

echo "
Days used: "$count"
"