updateGlobalScripts

#!/usr/bin/env bash

RED='\033[0;31m'
GREEN='\033[0;32m'
BLUE='\033[0;34m'
NC='\033[0m'

if [ $EUID = 0 ]; then
  printf "\n"
else
  echo -e "\n${RED}Root permission will be required to make script global!${NC}"
  exit 1
fi

if [[ $1 == '' ]]; then
  CUR_DIR=$(pwd)
else
  CUR_DIR=$1
fi

SCRIPTS=()

for file in "$CUR_DIR"/*; do
  FILE_NAME=$(basename "$file")

  if [ -f "/usr/bin/$FILE_NAME" ] && [ "$(cmp "/usr/bin/$FILE_NAME" "$file")" ]; then
    #echo "/usr/bin/$FILE_NAME" exists and is different
    SCRIPTS+=("$file")
  fi
done

printf "${GREEN}"

for script in "${SCRIPTS[@]}"; do
  FILE_NAME=$(basename "$script")
  echo "$FILE_NAME"
done

echo -e "${BLUE}"
read -n 1 -rp "These scripts were found in /usr/bin, update? [Y/n] " prompt

# Convert input to lowercase
prompt=${prompt,,}

#Add extra \n if not empty due to "enter" inserting a newline
if [[ -n "$prompt" ]]; then
  printf "\n"
fi

if ! [ "$prompt" == y ] && [ -n "$prompt" ]; then
  echo -e "\n${RED}Quitting${NC}"
  exit 1
fi

echo -e "\n${BLUE}Updating scripts...${NC}"

for defScript in "${SCRIPTS[@]}"; do
  FILE_NAME=$(basename "$defScript")
  cp "$defScript" /usr/bin/"$FILE_NAME"
  chown "$SUDO_USER":"$SUDO_USER" /usr/bin/"$FILE_NAME"
  chmod +x /usr/bin/"$FILE_NAME"
done

echo -e "\n${GREEN}Updating finished${NC}"