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[root@web01 ~]# w

 16:22:22 up  2:04,  4 users,  load average: 0.04, 0.03, 0.05

USER     TTY      FROM             LOGIN@   IDLE   JCPU   PCPU WHAT

root     tty1                      Sun19   45:00m  0.05s  0.05s -bash

root     pts/0    10.0.0.1         Mon15   25:00m  0.05s  0.05s -bash

root     pts/1    10.0.0.1         Sun19   44:45m  0.07s  0.07s -bash

root     pts/2    10.0.0.1         16:04    6.00s  0.12s  0.00s w

[root@web01 ~]# w|awk 'NR==1{print $4}'

4

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vim /etc/zabbix/zabbix_agentd.conf

# UserParameter=

UserParameter=user_num,w|awk 'NR==1{print $4}'

systemctl restart zabbix-agent.service

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yum install -y zabbix-get

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[root@m01 ~]# zabbix_get -s 10.0.0.7 -k user_num

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