统计apache日志独立IP个数

panjianm

　　cat access_log | awk '{++S[$1]} END {for(a in S) print a, S[a]}'|sort|wc -l
　　第一列是IP列，第四列是时间列
　　瞬时IP数:cat access_log | grep 'jw_player.html'|awk '{++S[$4]} END {for(a in S) print a, S[a],$1}' | awk '{print $2,$1}' |wc -l
　　5 [28/Feb/2011:10:19:19
　　5 [28/Feb/2011:10:19:40
　　5 [28/Feb/2011:10:19:51
　　5 [28/Feb/2011:10:22:05
　　5 [28/Feb/2011:10:22:50
　　5 [28/Feb/2011:10:25:48
　　5 [28/Feb/2011:10:26:01
　　5 [28/Feb/2011:10:45:13
　　5 [28/Feb/2011:10:50:11
　　6 [01/Mar/2011:08:25:24
　　6 [28/Feb/2011:10:03:20
　　6 [28/Feb/2011:10:25:20
　　6 [28/Feb/2011:10:25:25
　　7 [28/Feb/2011:10:14:50
　　cat oa-2011-03-03-access.log |grep core/index.jsp| awk '{++S[$4]} END {for(a in S) print a, S[a],$1}' | awk '{print $2,$1}'|sort -n