Visit Our UNIX and Linux User Community

wtmp file - is there a patch to export the data another file each day?

Thread Tools Search this Thread
Operating Systems AIX wtmp file - is there a patch to export the data another file each day?
# 1  
Old 07-02-2012
wtmp file - is there a patch to export the data another file each day?

sorry for being a noob, i am trying to find which user accessed the server at what time and there ip address at first i used who command but the output didn't contain the ip address then i used the last command which provided me with the ip of the users but when i searched i searched and found that both commands use to retrieve the data from a file called wtmp.
- does both use the same file ?
- i found that the file contains only record for the last day how can i increase the time the this file hold the data ?
- is there a patch to export the data another file each day ?
# 2  
Old 07-02-2012
No need to be sorry.

From man who:
To obtain information, the who command usually examines the /etc/utmp file. If you specify another file with the File parameter,
the who command examines that file instead. This new file is usually the /var/adm/wtmp or /etc/security/failedlogin file.
Normally a plain last shows all entries. Though you can try who -a /var/adm/wtmp if it shows more.

/etc/utmp contains much less entries than /var/adm/wtmp.

Here some clearing up from the IBM site:
Help - AIX 7.1 Information Center

/etc/utmp stores the logins, while /var/adm/wtmp stores archives everything together with information that will be used if you are using the Advanced Accounting facilities of AIX.

I just did a check on a box and here is the outcome:
# who -a /etc/utmp| wc -l
# who -a /var/adm/wtmp| wc -l

Do you maybe have a job that tries to save space in /var and just overwrites or nulls /var/adm/wtmp? It can happen on machines, that are very busy login-wise, that this file can get very big very fast. Maybe that's the reason a last shows only last's day entries.

Previous Thread | Next Thread
Test Your Knowledge in Computers #987
Difficulty: Medium
The FreeBSD TCP/IP stack is based on the 4.2BSD implementation of TCP/IP.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Script to Gather data from logs and export to a CSV file

Greetings, After a few hours of trial and error, I decide to ask for some help. I am new to AWK and shell script, so please don't laugh :p I made the below script, to gather data from some logs and have the output into a CSV file : #!/bin/sh #Script to collect Errors ... (9 Replies)
Discussion started by: Yagami_Sama
9 Replies

2. Linux

Parsing - export html table data as .csv file?

Hi all, Is there any out there have a brilliant idea on how to export html table data as .csv or write to txt file with separated comma and also get the filename of link from every table and put one line per rows each table. Please see the attached html and PNG of what it looks like. ... (7 Replies)
Discussion started by: lxdorney
7 Replies

3. Shell Programming and Scripting

How to export hive table data to a file on local UNIX?

Hi All , I am stuck on the below situation.I have a table called "test" which are created on hive.I need to export the data from hive to a file(test.txt) on local unix system.I have tried the below command ,but its giving the exception . hive -e "select * from test " > /home/user/test.txt ; ... (1 Reply)
Discussion started by: STCET22
1 Replies

4. Shell Programming and Scripting

Append data to new row in CSV file every day

Hi All I will run the same script every day in corn and output should go to same CSV file but in different row with dates on it. Below is my example in attached format. Script i am using to collect switch port online DATE=`date '+%d-%m-%y'` for f in `cat... (1 Reply)
Discussion started by: ranjancom2000
1 Replies

5. Shell Programming and Scripting

Run script to export the data to ixf file in loop

Hi, I am trying to export the data to an .ixf file. I have read the table names from a .dat file and those table name should be passed to the select * from schema.TABLENAME query . I am trying the below loop while read TABLE; do db2 EXPORT TO ~/data_export/$TABLE.ixf OF IXF MESSAGES... (5 Replies)
Discussion started by: vikyalex4
5 Replies

6. Shell Programming and Scripting

find string(s) in text file and nearby data, export to list help

Hi, So I'm kinda new to shell scripts and the like. I've picked up quite a bit of use from browsing the forums here but ran into a new one that I can't seem to find an answer for. I'm looking to parse/find a string AND the next 15 or so charachters that follow the string within a text file... (1 Reply)
Discussion started by: kar23me
1 Replies

7. Shell Programming and Scripting

How to export table data to xml file?

Hi , I would like to get some suggestion from the experts. My requirement is to export oracle table data as an xml file. Any unix/linux tools, scripts available? Regards, (2 Replies)
Discussion started by: LinuxLearner
2 Replies

8. Shell Programming and Scripting

Export data from DB2 table to .txt file(space delimited)

Hi I need help on this. Its very urgent for me.. please try to help me out.. I have data in tables in DB2 database. I would like to export the data from DB2 tables into a text file, which has to be space delimited. so that I can carry out awk, grep operations on that file. I tried to export... (2 Replies)
Discussion started by: ss3944
2 Replies

9. Shell Programming and Scripting

unix script to export data from csv file to oracle database

Hello people, Need favour. The problem I have is that, I need to develop a unix shell script that performs recurring exports of data from a csv file to an oracle database. Basically, the csv file contains just the first name and last name will be dumped to an Unix server. The data from these... (3 Replies)
Discussion started by: vinayagan
3 Replies

10. UNIX for Dummies Questions & Answers

How to export data file from Unix

Hi, I am searching a way to export data file on Unix to SQL server on a daily bases. Any one has any ideas? Thanks in advance! (20 Replies)
Discussion started by: whatisthis
20 Replies

Featured Tech Videos