列出最最耗时的页面(超过60秒的)的以及对应页面发生次数*
cat access.log |awk '($NF > 60 && $7~/.php/){print $7}'|sort -n|uniq -c|sort -nr|head -100统计网站流量（G)
cat access.log |awk '{sum+=$10} END {print sum/1024/1024/1024}'
统计404的连接
awk '($9 ~/404/)' access.log | awk '{print $9,$7}' | sort
统计http status.
cat access.log |awk '{counts[$(9)]+=1}; END {for(code in counts) print code, counts[code]}'
cat access.log |awk '{print $9}'|sort|uniq -c|sort -rn
每秒并发：
watch "awk '{if($9~/200|30|404/)COUNT[$4]++}END{for( a in COUNT) print a,COUNT[a]}' log_file|sort -k 2 -nr|head -n10"
带宽统计
cat apache.log |awk '{if($7~/GET/) count++}END{print "client_request="count}'
cat apache.log |awk '{BYTE+=$11}END{print "client_kbyte_out="BYTE/1024"KB"}'
找出某天访问次数最多的10个IP
cat /tmp/access.log | grep "20/Mar/2011" |awk '{print $3}'|sort |uniq -c|sort -nr|head
当天ip连接数最高的ip都在干些什么:
cat access.log | grep "10.0.21.17" | awk '{print $8}' | sort | uniq -c | sort -nr | head -n 10
小时单位里ip连接数最多的10个时段
awk -vFS="[:]" '{gsub("-.*","",$1);num[$2" "$1]++}END{for(i in num)print i,num[i]}' log_file | sort -n -k 3 -r | head -10
找出访问次数最多的几个分钟
awk '{print $1}' access.log | grep "20/Mar/2011" |cut -c 14-18|sort|uniq -c|sort -nr|head
取5分钟日志
if [ $DATE_MINUTE != $DATE_END_MINUTE ] ;then #则判断开始时间戳与结束时间戳是否相等START_LINE=sed -n "/$DATE_MINUTE/=" $APACHE_LOG|head -n1 #如果不相等，则取出开始时间戳的行号，与结束时间戳的行号
查看tcp的链接状态
netstat -nat |awk '{print $6}'|sort|uniq -c|sort -rn
netstat -n | awk '/^tcp/ {++S[$NF]};END {for(a in S) print a, S[a]}'
netstat -n | awk '/^tcp/ {++state[$NF]}; END {for(key in state) print key,"t",state[key]}'
netstat -n | awk '/^tcp/ {++arr[$NF]};END {for(k in arr) print k,"t",arr[k]}'
netstat -n |awk '/^tcp/ {print $NF}'|sort|uniq -c|sort -rn
netstat -ant | awk '{print $NF}' | grep -v '[a-z]' | sort | uniq -c
netstat -ant|awk '/ip:80/{split($5,ip,":");++S[ip[1]]}END{for (a in S) print S[a],a}' |sort -n
netstat -ant|awk '/:80/{split($5,ip,":");++S[ip[1]]}END{for (a in S) print S[a],a}' |sort -rn|head -n 10
awk 'BEGIN{printf ("http_codetcount_numn")}{COUNT[$10]++}END{for (a in COUNT) printf a"tt"COUNT[a]"n"}'
查找请求数前20个IP（常用于查找攻来源）：
netstat -anlp|grep 80|grep tcp|awk '{print $5}'|awk -F: '{print $1}'|sort|uniq -c|sort -nr|head -n20
netstat -ant |awk '/:80/{split($5,ip,":");++A[ip[1]]}END{for(i in A) print A[i],i}' |sort -rn|head -n20
用tcpdump嗅探80端口的访问看看谁最高
