Find configuration on Heroku

find_config.sh

#!/bin/bash

# Config to find on heroku
CONFIG=$(echo $CONFIG)

if [ -z $CONFIG ]; then
    echo "Syntax error! CONFIG=<config to find> $0"
    exit 1
fi

ALL_APPS=( $(heroku apps -A| awk '($1 !~ "==") {print $1}') )
for((cont=0; cont<${#ALL_APPS[@]}; cont++)); do
    APP=${ALL_APPS[$cont]}
    heroku config -a $APP | grep $CONFIG
    if [ $? -eq 0 ]; then
        echo "Config is here! $APP"
    fi
done

Example...

Locate "Hello" configuration from apps:

CONFIG=Hello ./find_config.sh