#!/bin/bash

if [ "$#" -ne 2 ]; then
    echo "Usage: ./script.sh <directory 1> <directory 2>"
    exit 1
fi

if [ ! -d $1 ] || [ ! -d $2 ]; then
    echo "At least one of the arguments given is not a directory."
    exit 1
fi

destination=$1
source=$2

for file in $(ls $source); do
    # jesli plik nie jest katalogiem ani symlinkiem
    if [ ! -d $source/$file ] && [ ! -L $source/$file ]; then
        ln $(realpath "$source/$file") $destination/$file # link w postaci kanonicznej
    fi
done