"git pull" all sub .gits for a given path

pull-all-gits.sh

#!/bin/bash
#######################################################
# purpose  : "git pull" all sub .gits for a given path
# author   : njd
# created  : 2015-03-05
# modified : 2017-04-21
# usage    : ./pull-all-gits.sh [path]
#######################################################

ESC="\033"
NORMAL="$ESC[m"
DULL=0
BRIGHT=1
FG_CYAN=36
CYAN="$ESC[${DULL};${FG_CYAN}m"

if [ "$1" == "" ]
then
  FS=$(pwd)
else
  FS=$1
fi

read -r -p "pull ALL gits under $FS? [y/N] " response

case "$response" in
  y) find "$FS" -type d -name ".git" -exec echo -e "\n${CYAN}{}${NORMAL}" \; -exec git -C '{}/..' pull \; -exec echo "" \;
     ;;
  *) echo "aborted"
     ;;
esac