1. Intro
Use multiple shell windows from a single SSH session.
Keep a shell active even through network disruptions.
Disconnect and re-connect to a shell sessions from multiple locations.
Run a long running process without maintaining an active shell session.
ref> https://www.rackaid.com/blog/linux-screen-tutorial-and-how-to/
2. Install
yum install screen
3. Command
# session list 확인
screen -list
# 세션 신규 생성
screen -S [session name]
# 세션 재진입
screen -r [session name]
# 세션 탈출 : session 내에서 작업은 계속 진행되는 상태
Ctrl + A, D
# 세션 종료
진입 후 exit