[Ubuntu] apt-add-repository: command not found 오류해결
오류 내용 ┌──(vagrant㉿kali)-[~] └─$ sudo apt-add-repository -y ppa:ethereum/ethereum sudo: apt-add-repository: command not found 해결 방법 ┌──(vagrant㉿kali)-[~] └─$ sudo apt install software-properties-common