root@gcc /home/users# screen -list
There is a screen on:
        3799.pts-0.gcc  (Attached)
1 Socket in /tmp/screens/S-root.
root@gcc /home/users# w
 06:48:52 up 14:14,  5 users,  load average: 0.00, 0.00, 0.00
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
root     pts/1    l-a:S.0          Thu16    0.00s  0.20s  0.00s w
root     pts/2    l-a:S.1          Thu16    7:56m  0.29s  0.10s vim format.pl
root     pts/3    l-a:S.2          Thu16   11:52m  0.18s  0.00s /bin/sh /sbin/service mysql4 shell
root     pts/4    l-a:S.3          Thu16    8:41m  0.34s  0.26s vim addruser.pl
root     pts/6    l-a:S.4          Thu18   12:46m  0.02s  0.00s tail -fn 50 mysql.log

root@server ~# screen -list
There is a screen on:
        27636.pts-2.server      (Detached)
1 Socket in /tmp/screens/S-root.
root@server ~# w
 10:51:39 up 12 days, 21:16,  1 user,  load average: 0.00, 0.00, 0.00
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
viliar   pts/2    l-a.xxx 09:56    0.00s  0.31s  0.02s sshd: viliar [priv]
root@server ~# screen -rAa
root@server ~# w
 10:52:22 up 12 days, 21:16,  4 users,  load average: 0.00, 0.00, 0.00
USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
root     pts/1    l-a:S.1          Sun16    0.00s  0.39s  0.00s w
root     pts/3    l-a:S.2          Sun16   52:20   0.32s  0.00s /bin/sh /sbin/service mysql4 shell
root     pts/4    l-a:S.3          Wed10   14:20m  0.36s  0.26s vim addruser.pl
root     pts/0    l-a:S.0          Sun16    5.00s  0.02s  0.00s tail -n 50 -F /var/log/messages