1.选出对应时间的日志

sed -ne '/15\/Dec\/2020:09:00:04 +0800/,/15\/Dec\/2020:10:38:54 +0800/p' access.log |grep -v 'HEAD / HTTP/1.1' > /tmp/all-ip.txt

2.统计独立访问ip

awk '{print $1}' /tmp/all-ip.txt |uniq -c |sort -k1 -nr|wc -l

用一个例子来演示会更加清晰