htop


htop mem color is 
- green - used
- blud - buffer
- yellow  - cache



> [서버 모니터링 프로그램 Htop 사용 방법 - Ubuntu 기준 | 꿈꾸는섬](https://happist.com/557995/%EC%84%9C%EB%B2%84-%EB%AA%A8%EB%8B%88%ED%84%B0%EB%A7%81-%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%A8-htop-%EC%82%AC%EC%9A%A9-%EB%B0%A9%EB%B2%95-ubuntu/)





