:Summary : A screen manager that supports multiple logins on one terminal
$ yum install -y screen
screen -S [session name]
$ screen -S sangchul [detached from 4008445.sangchul]
Ctrl + a, d
세션 리스트 확인
$ screen -ls There are screens on: 4008445.sangchul (Detached) 4008392.sangchu (Detached) 2 Sockets in /var/run/screen/S-root.
세션 다시 연결
screen -r [session name]
$ screen -r sangchul ###세션이 하나만 있을경우 $ screen -r
screen -X -S [session name] quit
$ screen -ls There are screens on: 4008445.sangchul (Detached) 4008392.sangchu (Detached) 2 Sockets in /var/run/screen/S-root. $ screen -X -S sangchu quit $ screen -ls There is a screen on: 4008445.sangchul (Detached) 1 Socket in /var/run/screen/S-root.
$ screen -help Use: screen [-opts] [cmd [args]] or: screen -r [host.tty] Options: -4 Resolve hostnames only to IPv4 addresses. -6 Resolve hostnames only to IPv6 addresses. -a Force all capabilities into each window's termcap. -A -[r|R] Adapt all windows to the new display width & height. -c file Read configuration file instead of '.screenrc'. -d (-r) Detach the elsewhere running screen (and reattach here). -dmS name Start as daemon: Screen session in detached mode. -D (-r) Detach and logout remote (and reattach here). -D -RR Do whatever is needed to get a screen session. -e xy Change command characters. -f Flow control on, -fn = off, -fa = auto. -h lines Set the size of the scrollback history buffer. -i Interrupt output sooner when flow control is on. -l Login mode on (update /var/run/utmp), -ln = off. -ls [match] or -list Do nothing, just list our SockDir [on possible matches]. -L Turn on output logging. -m ignore $STY variable, do create a new screen session. -O Choose optimal output rather than exact vt100 emulation. -p window Preselect the named window if it exists. -q Quiet startup. Exits with non-zero return code if unsuccessful. -Q Commands will send the response to the stdout of the querying process. -r [session] Reattach to a detached screen process. -R Reattach if possible, otherwise start a new session. -s shell Shell to execute rather than $SHELL. -S sockname Name this session <pid>.sockname instead of <pid>.<tty>.<host>. -t title Set title. (window's name). -T term Use term as $TERM for windows, rather than "screen". -U Tell screen to use UTF-8 encoding. -v Print "Screen version 4.01.00devel (GNU) 2-May-06". -wipe [match] Do nothing, just clean up SockDir [on possible matches]. -x Attach to a not detached screen. (Multi display mode). -X Execute <cmd> as a screen command in the specified session.
스크린을 이용한 rsync 데이타 동기화 작업
[root@bvm01 ~]# screen -S Rsync
>>> [user01@bvm01 ~]$ cd /app
>>> [user01@bvm01 app]$ rsync -az -e ssh firstname.lastname@example.org:/app/ .
>>> email@example.com's password:
>>> Ctrl + a, d
[detached from 324059.Rsync]
[root@bvm01 ~]# screen -ls
There is a screen on:
1 Socket in /run/screen/S-root.
[root@bvm01 ~]# screen -r
>>> [user01@bvm01 app]$screen -X -S 324059..Rsync quit
[screen is terminating]
[root@bvm01 ~]# screen -ls
No Sockets found in /run/screen/S-root.