append_to_bashrc() {
    local bashrc="$HOME/.bashrc"
    for file in "$@"; do        
        while IFS= read -r line; do
            [[ -z "$line" ]] && continue
            if ! grep -Fxq "$line" "$bashrc"; then
                echo "$line" >> "$bashrc"
                echo "Add: $line to bashrc"
            fi
        done < "$file"
    done
}

append_to_bashrc aliases.sh bashrc.sh