#!/bin/bash

main () {
	cwd=$(pwd)
	echo 'Before:' "$data"
	lines=$(echo "$data" | tr ':' '\n')
	mapfile -t lines < <(for i in "${lines[@]}"; do echo "$i"; done | uniq)
	res=()

	for directory in "${lines[@]}"; do
		if [ -d "$directory" ]; then
  			cd "$directory" || exit 1
			found="false"
			for file in *; do
    			if [ -x "$file" ]; then
					found="true"
					break
				fi
			done
			if [ "$found" == "true" ]; then
				res+=("$directory")
			fi
			cd "$cwd" || exit 1
		fi
	done

	cleared=''
	for directory in "${res[@]}"; do
		cleared=$cleared$directory:
	done
	echo 'After :' "${cleared::-1}"
}


#ARGUMET PARSING
	[ "$1" = "-h" ] || [ "$1" = "--help" ] && echo 'usage: ./clearPath.sh [CUSTOM_PATH]' && exit 1

	if [ -z "$1" ]; then
    	data=$PATH
	else
		data=$1
	fi

#CALL MAIN
	main
	exit 0