해도해도 익숙해지지가 않아.. 매번 문서를 찾아봐야된다..
https://admm.tistory.com/102
https://m.blog.naver.com/zbqmgldjfh/222086097819
https://inpa.tistory.com/entry/LINUX-%F0%9F%93%9A-Vi-Vim-%EC%97%90%EB%94%94%ED%84%B0-%EB%8B%A4%EB%A3%A8%EA%B8%B0-%EB%AA%85%EB%A0%B9%EC%96%B4-%F0%9F%92%AF-%EC%A0%95%EB%A6%AC
