Comprehensive summary of shell analysis log file commands

1、 See how many IP visit ：

awk ‘{print $1}’ log_file|sort|uniq|wc -l

2、 View the number of times a page has been visited ：

grep “/index.php” log_file | wc -l

3、 View each IP How many pages visited ：

awk ‘{++S[$1]} END {for (a in S) print a,S[a]}’ log_file > log.txt

sort -n -t ’ ’ -k 2 log.txt # coordination sort Further sorting

4、 Each one IP Number of pages visited sorted from small to large ：

awk ‘{++S[$1]} END {for (a in S) print S[a],a}’ log_file | sort -n

5、 View a IP Which pages were visited ：

grep ^111.111.111.111 log_file| awk ‘{print $1,$7}’

6、 Remove search engine statistics page ：

awk ‘{print $12,$1}’ log_file | grep ^"Mozilla | awk ‘{print $2}’ |sort | uniq | wc -l

7、 see 2015 year 8 month 16 Japan 14 How many in an hour IP visit :

awk ‘{print $4,$1}’ log_file | grep 16/Aug/2015:14 | awk ‘{print $2}’| sort | uniq | wc -l

8、 View top ten visits ip Address

awk ‘{print $1}’ |sort|uniq -c|sort -nr |head -10 access_log

uniq -c It's equivalent to grouping statistics and putting statistics first

cat access.log|awk ‘{print $1}’|sort|uniq -c|sort -nr|head -10

cat access.log|awk '{counts[$(11)]+=1}; END {for(url in counts) print counts[url], url}

9、 Most visited 10 Files or pages

cat log_file|awk ‘{print $11}’|sort|uniq -c|sort -nr | head -10

Before the most visited 20 individual ip

cat log_file|awk ‘{print $11}’|sort|uniq -c|sort -nr|head -20

awk ‘{print $1}’ log_file |sort -n -r |uniq -c | sort -n -r | head -20

10、 Access times through subdomain , basis referer To calculate , A little wrong

cat access.log | awk ‘{print $11}’ | sed -e ’ s/http:’ -e ’ s//.*//’ | sort | uniq -c | sort -rn | head -20

11、 List the files with the largest transfer size

cat www.access.log |awk ‘($7~/.php/){print $10 " " $1 " " $4 " " $7}’|sort -nr|head -100

12、 List output greater than 200000byte( about 200kb) Page of and the number of occurrences of the corresponding page

cat www.access.log |awk ‘($10 > 200000 && $7~/.php/){print $7}’|sort -n|uniq -c|sort -nr|head -100

13、 If the last column of the log records the page file transfer time , There are pages that list the most time consuming to the client

cat www.access.log |awk ‘($7~/.php/){print $NF " " $1 " " $4 " " $7}’|sort -nr|head -100

14、 List the most time consuming pages ( exceed 60 Of a second ) And the number of times the corresponding page occurs

cat www.access.log |awk ‘($NF > 60 && $7~/.php/){print $7}’|sort -n|uniq -c|sort -nr|head -100

15、 List transfer time exceeds 30 Seconds of files

cat www.access.log |awk ‘($NF > 30){print $7}’|sort -n|uniq -c|sort -nr|head -20

16、 Lists the number of processes running on the current server , Reverse order

ps -ef | awk -F ’ ’ ‘{print $8 " " $9}’ |sort | uniq -c |sort -nr |head -20

17、 see apache Current concurrent accesses

contrast httpd.conf in MaxClients What's the difference

netstat -an | grep ESTABLISHED | wc -l

18、 You can use the following parameters to view the data

ps -ef|grep httpd|wc -l
1388

Statistics httpd Number of processes , Even requests start a process , Used in Apache The server .
Express Apache Able to handle 1388 Four concurrent requests , This value Apache It can be adjusted automatically according to the load

netstat -nat|grep -i “80”|wc -l
4341

netstat -an Will print the current network link status of the system , and grep -i "80" It is used to extract and 80 Port related connections ,wc -l Make connection statistics .
The final number returned is all 80 Total requests for port

netstat -na|grep ESTABLISHED|wc -l
376

netstat -an Will print the current network link status of the system , and grep ESTABLISHED Extract the information of established connection . then wc -l Statistics
The final number returned is all 80 Total number of established connections for port .

netstat -nat||grep ESTABLISHED|wc

Detailed records of all established connections can be viewed

19、 Output each ip Connection number , And the total number of connections in each state

netstat -n | awk ‘/^tcp/ {n=split($(NF-1),array,":");if(n<=2)++S[array[(1)]];else++S[array[(4)]];++s[$NF];++N} END {for(a in S){printf(“%-20s %s\n”, a, S[a]);++I}printf(“%-20s %s\n”,“TOTAL_IP”,I);for(a in s) printf(“%-20s %s\n”,a, s[a]);printf(“%-20s %s\n”,“TOTAL_LINK”,N);}’

20、 Other collections

Analysis log file 2012-05-04 Highest access page Before 20 individual URL And sort

cat access.log |grep ‘04/May/2012’| awk ‘{print $11}’|sort|uniq -c|sort -nr|head -20

Query the URL In the address contain www.abc.com Of IP Address

cat access_log | awk ‘($11~/\www.abc.com/){print $1}’|sort|uniq -c|sort -nr

Get the most visited 10 individual IP Address You can also query by time

cat linewow-access.log|awk ‘{print $1}’|sort|uniq -c|sort -nr|head -10

Time period query log time period

cat log_file | egrep ‘15/Aug/2015|16/Aug/2015’ |awk ‘{print $1}’|sort|uniq -c|sort -nr|head -10

analysis 2015/8/15 To 2015/8/16 visit "/index.php?g=Member&m=Public&a=sendValidCode" Of IP Reverse order

cat log_file | egrep ‘15/Aug/2015|16/Aug/2015’ | awk ‘{if($7 == “/index.php?g=Member&m=Public&a=sendValidCode”) print $1,$7}’|sort|uniq -c|sort -nr

($7~/.php/) $7 It contains .php The output of , The most time-consuming one hundred PHP page

cat log_file |awk ‘($7~/.php/){print $NF " " $1 " " $4 " " $7}’|sort -nr|head -100

List the most time consuming pages ( exceed 60 Of a second ) And the number of times the corresponding page occurs

cat access.log |awk ‘($NF > 60 && $7~/.php/){print $7}’|sort -n|uniq -c|sort -nr|head -100

Statistics website traffic （G)

cat access.log |awk ‘{sum+=$10} END {print sum/1024/1024/1024}’

Statistics 404 The connection of

awk ‘($9 ~/404/)’ access.log | awk ‘{print $9,$7}’ | sort

Statistics 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

Concurrency per second

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”

Bandwidth statistics

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”}’

Find the most visited 10 individual IP

cat /tmp/access.log | grep “20/Mar/2011” |awk ‘{print $3}’|sort |uniq -c|sort -nr|head

same day ip The highest number of connections ip What are you doing

cat access.log | grep “10.0.21.17” | awk ‘{print $8}’ | sort | uniq -c | sort -nr | head -n 10

Hour unit ip The most connected 10 Time periods

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

Find the minutes with the most visits

awk ‘{print $1}’ access.log | grep “20/Mar/2011” |cut -c 14-18|sort|uniq -c|sort -nr|head

take 5 Minute log

if [ $DATE_MINUTE != $DATE_END_MINUTE ] ;then
# Then judge whether the start time stamp and the end time stamp are equal

START_LINE=sed -n “/$DATE_MINUTE/=” $APACHE_LOG|head -n1
# If it's not equal , The line number of the start time stamp is taken out , Line number with end timestamp

see tcp Link status for

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 -cnetstat -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_code\tcount_num\n”)}{COUNT[$10]++}END{for (a in COUNT) printf a"\t\t"COUNT[a]“\n”}’

Before number of search requests 20 individual IP（ Often used to find attack source ）：

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

use tcpdump Sniffing 80 Port access to see who is the highest

tcpdump -i eth0 -tnn dst port 80 -c 1000 | awk -F"." ‘{print $1".“$2”.“$3”."$4}’ | sort | uniq -c | sort -nr |head -20

Find more time_wait Connect

netstat -n|grep TIME_WAIT|awk ‘{print $5}’|sort|uniq -c|sort -rn|head -n20

Find out more SYN Connect

netstat -an | grep SYN | awk ‘{print $5}’ | awk -F: ‘{print $1}’ | sort | uniq -c | sort -nr | more

Process by port

netstat -ntlp | grep 80 | awk ‘{print $7}’ | cut -d/ -f1

Looked at the number of connections and the current number of connections

netstat -ant | grep $ip:80 | wc -l
netstat -ant | grep $ip:80 | grep EST | wc -l

see IP Number of visits

netstat -nat|grep “:80”|awk ‘{print $5}’ |awk -F: ‘{print $1}’ | sort| uniq -c|sort -n

Linux Command to analyze the current link status

netstat -n | awk '/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}'

watch “netstat -n | awk ‘/^tcp/ {++S[$NF]} END {for(a in S) print a, S[a]}’”

#  adopt watch Can be monitored all the time 

LAST_ACK 5   # Close a TCP The connection needs to be closed in two directions , Both sides send FIN To indicate the closing of unidirectional data , When the communication parties send the last FIN When , Sender at this time LAST_ACK state , When the sender receives the confirmation from the other party （Fin Of Ack confirm ） Only after that can we really close the whole TCP Connect ;
SYN_RECV 30       #  Indicates the number of requests waiting to be processed ;
ESTABLISHED 1597  #  Indicates normal data transmission status ; 
FIN_WAIT1 51      #  Express server End active request closed tcp Connect ; 
FIN_WAIT2 504     #  Indicates that the client is disconnected ; 
TIME_WAIT 1057    #  Indicates processing is complete , Number of requests waiting for timeout to end ;

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