是这个命令么? 是不是80端口未被占用的意思?
[root@hwsrv-809157 ~]# netstat -anp |grep 80
tcp 0 96 f1g1ns1.dnspod.net:ssh 112.85.42.87:37080 ESTABLISHED
unix 3 [ ] STREAM CONNECTED 27580
unix 2 [ ] DGRAM 27480
unix 3 [ ] STREAM CONNECTED 20880
unix 3 [ ] STREAM CONNECTED 63280
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