zabbix如何添加监控主机和自定义监控项_zabbix

[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

vim /etc/zabbix/zabbix_agentd.conf 
# UserParameter=
UserParameter=user_num,w|awk 'NR==1{print $4}'

systemctl restart zabbix-agent.service 

yum install -y zabbix-get

[root@m01 ~]# zabbix_get -s 10.0.0.7 -k user_num
4