properties-filter.sh

#!/usr/bin/env bash
LC_CTYPE=C
LANG=C
FILE=$1
for props in $(cat $FILE | cut -d= -f 1 | grep -v ^$ | grep -v \# | grep -v "^\ "); do
 LINE=$(grep "^$props" $FILE | awk -F= '{print $2}')
 if [[ $LINE == *'${'* ]]; then
  IFS=',' read -r -a array <<< "$LINE"
  for element in "${array[@]}"
   do
    echo -n "$props "
    echo -n "$element" | awk -F\} '{printf "%s",$1}' | awk -F\$ '{printf "%s",$2}' | sed 's/{//' | sed 's/}//'
    echo " # $FILE"
  done
fi
done