Sponsored Content
Full Discussion: Extract IP from logs and
Top Forums Shell Programming and Scripting Extract IP from logs and Post 302778473 by RudiC on Monday 11th of March 2013 04:35:05 AM
Old 03-11-2013
Although not entirely clear about what you want, this
Code:
awk     '{gsub (/:*login:*|:*null:*/,"")
          if (!max[$9] || $4>max[$9]) max[$9]=$4
          if (!min[$9] || $4<min[$9]) min[$9]=$4
         }
         END    {for (i in max) {split (max[i], MX, ":")
                                 split (min[i], MN, ":")
                                 Delta = (MX[1]-MN[1]) * 3600 + (MX[2]-MN[2]) * 60 + MX[3]-MN[3]
                                 print i, min[i], max[i] > ((Delta > 4)?"b":"c")".out"
                                }
                }
        ' OFS="\t" a.out

will list logins with a span larger than 4 sec between earliest and latest access to b.out, and the rest to c.out. It doesn't care if there's four accesses within four sec, indicating a non-human attempt. And, it does NOT take care of periods spanning across midnight - this would open a wide field, then.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

logs

can i include this command into my crontab file > /var/adm/wtmp to clear the contents on a regular basis ? what about file permissions ? (6 Replies)
Discussion started by: cubicle^dweller
6 Replies

2. Shell Programming and Scripting

Logs

Hey Guys, i am new into shell programming and i have to do one script which have to record all the commands entered by a specific user. Example of that, i have a system running on unix, several users are using this system, i have to create like a databse which will record every user entered that... (5 Replies)
Discussion started by: charbel
5 Replies

3. UNIX for Advanced & Expert Users

logs

Hy, I have a question I have a directory in a unix server, Some of my files have a diffrent access time, from the time i accessed them last, I think some one has copied it,it's not an important file,but none the less,it is my file,It mistakenly had a 777 permission( yes ,I know it is a noob's... (1 Reply)
Discussion started by: lordmod
1 Replies

4. Shell Programming and Scripting

Grep yesterday logs from weblogic logs

Hi, I am trying to write a script which would go search and get the info from the logs based on yesterday timestamp and write yesterday logs in new file. The log file format is as follows: """"""""""""""""""""""""""... (3 Replies)
Discussion started by: harish.parker
3 Replies

5. Shell Programming and Scripting

Help needed to extract distinct logs from a Log File

Hi, I urgently need some help how to extract distinct entries from a Log file. The Log File may have same error occuring many times so how do i count the occurance of an error in file and also extract out distinct errors in a file. Eg:- I have a file name A.log it contains entries as below:-... (5 Replies)
Discussion started by: roro
5 Replies

6. Shell Programming and Scripting

Search for a pattern,extract value(s) from next line, extract lines having those extracted value(s)

I have hundreds of files to process. In each file I need to look for a pattern then extract value(s) from next line and then search for value(s) selected from point (2) in the same file at a specific position. HEADER ELECTRON TRANSPORT 18-MAR-98 1A7V TITLE CYTOCHROME... (7 Replies)
Discussion started by: AshwaniSharma09
7 Replies

7. Shell Programming and Scripting

Help with extract application logs through shell script in performance testing

Hi Experts, I am new to shell.How to extract logs (Web,APP,Database) using shell in performance testing? Need for webserver logs,app server logs and d/b logs code. Thanks in advance Sree (3 Replies)
Discussion started by: sree vasu
3 Replies

8. Shell Programming and Scripting

Perl script to extract last 24 hrs logs from cronlog

Hi Friends, Can anybody help me to create a perl script to generate log file for last 24 hrs from cron log file ?? Thank You (2 Replies)
Discussion started by: syamji.vm
2 Replies

9. Shell Programming and Scripting

How to extract logs between the current time and the last 15 minutes ?

I want to extract the logs between the current time stamp and 15 minutes before and sent an email to the people configured. I developed the below script but it's not working properly; can someone help me?? I have a log file containing this pattern: Constructor QuartzJob ... (3 Replies)
Discussion started by: puneetkhullar
3 Replies

10. Shell Programming and Scripting

If I ran perl script again,old logs should move with today date and new logs should generate.

Appreciate help for the below issue. Im using below code.....I dont want to attach the logs when I ran the perl twice...I just want to take backup with today date and generate new logs...What I need to do for the below scirpt.............. 1)if logs exist it should move the logs with extention... (1 Reply)
Discussion started by: Sanjeev G
1 Replies
LAM(1)							    BSD General Commands Manual 						    LAM(1)

NAME
lam -- laminate files SYNOPSIS
lam [-f min.max] [-p min.max] [-s sepstring] [-t c] file ... DESCRIPTION
lam copies the named files side by side onto the standard output. The n-th input lines from the input files are considered fragments of the single long n-th output line into which they are assembled. The name ``-'' means the standard input, and may be repeated. Normally, each option affects only the file after it. If the option letter is capitalized it affects all subsequent files until it appears again uncapitalized. The options are described below. -f min.max Print line fragments according to the format string min.max, where min is the minimum field width and max the maximum field width. If min begins with a zero, zeros will be added to make up the field width, and if it begins with a '-', the fragment will be left-adjusted within the field. -p min.max Like -f, but pad this file's field when end-of-file is reached and other files are still active. -s sepstring Print sepstring before printing line fragments from the next file. This option may appear after the last file. -t c The input line terminator is c instead of a newline. The newline normally appended to each output line is omitted. To print files simultaneously for easy viewing use pr(1). EXAMPLES
The command lam file1 file2 file3 file4 joins 4 files together along each line. To merge the lines from four different files use lam file1 -S " " file2 file3 file4 Every 2 lines of a file may be joined on one line with lam - - < file and a form letter with substitutions keyed by '@' can be done with lam -t @ letter changes SEE ALSO
join(1), pr(1), printf(3) BSD
December 1, 2001 BSD
All times are GMT -4. The time now is 07:41 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy