Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

ac(8) [ultrix man page]

ac(8)							      System Manager's Manual							     ac(8)

Name
       ac - login accounting

Syntax
       /etc/ac [ -w wtmp ] [ -p ] [ -d ] [ people ] ...

Description
       The  command  produces a printout giving connect time for each user who has logged in during the life of the current wtmp file.	A total is
       also produced.

       The accounting file is maintained by and Neither of these programs creates the file, so if it does not exist no connect-time accounting	is
       done.   To  start  accounting,  it should be created with length 0.  On the other hand if the file is left undisturbed it will grow without
       bound, so periodically any information desired should be collected and the file truncated.

Options
       -w     Specifies an alternate wtmp file.

       -p     Prints individual totals; without this option, only totals are printed.

       -d     Causes a printout for each midnight to midnight period.  Any people will limit the printout to only the specified login  names.	If
	      no wtmp file is given, is used.

Files
See Also
       last(1), lastcomm(1), login(1), utmp(5), init(8), sa(8)

																	     ac(8)

Check Out this Related Man Page

AC(8)							    BSD System Manager's Manual 						     AC(8)

NAME
ac -- connect time accounting SYNOPSIS
ac [-dp] [-t tty] [-w wtmp] [users ...] DESCRIPTION
If the file /var/log/utx.log exists, a record of individual login and logout times are written to it by login(1) and init(8), respectively. The ac utility examines these records and writes the accumulated connect time (in hours) for all logins to the standard output. The options are as follows: -d Display the connect times in 24 hour chunks. -p Print individual users' totals. -t tty Only do accounting logins on certain ttys. The tty specification can start with '!' to indicate not this tty and end with '*' to indicate all similarly named ttys. Multiple -t flags may be specified. -w wtmp Read connect time data from wtmp instead of the default file, /var/log/utx.log. users ... Display totals for the given individuals only. If no arguments are given, ac displays the total connect time for all accounts with login sessions recorded in utx.log. The default utx.log file will increase without bound unless it is truncated. It is normally truncated by the daily scripts run by cron(8), which rename and rotate the utx.log files, keeping a week's worth of data on hand. No login or connect time accounting is performed if /var/log/utx.log does not exist. FILES
/var/log/utx.log connect time accounting file EXIT STATUS
The ac utility exits 0 on success, and >0 if an error occurs. EXAMPLES
Allow times recorded in modems to be charged out at a different rate than other: ac -p -t "ttyd*" > modems ac -p -t "!ttyd*" > other SEE ALSO
login(1), getutxent(3), init(8), sa(8) BSD
January 21, 2010 BSD
Man Page

15 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Need help with security

Hi there thanks for checking in. I run a helpdesk with about 500 users login onto a network and then onto a Unix box. Sometimes people use other people's login's.:-( All user's use there own PC.( I.P ) Is there a way that when somebody logs onto the unix box with a different I.P that the... (6 Replies)
Discussion started by: nemex
6 Replies

2. UNIX Desktop Questions & Answers

Logs

hi My name is Juan I dont can clear wtmp and similiar files how i do it? thanks (4 Replies)
Discussion started by: jtapia
4 Replies

3. UNIX for Advanced & Expert Users

.sh_history file

Hi Friends, We are currently 5 people using same Unix login-id on different terminals, .sh_history file contains list of commands typed by all 5 peoples(commands history) with the below list : $tail .sh_history ls -ltr pwd cd .. ls -ltr clear cd temp more kk.lst Now my question... (9 Replies)
Discussion started by: krishna
9 Replies

4. Windows & DOS: Issues & Discussions

Do you prefer Quickbooks, Microsoft or another small business accounting software?

I am starting a small business. I need software to invoice and track payments, track income and expense and basically keep everything organized for tax time. I've read positive and negative on all small business accounting software, so now I'm really confused. Oh, my business is a service one, so I... (3 Replies)
Discussion started by: sunybck
3 Replies

5. Linux

system slowdown at midnight

Hi, My test server slows down at 12:00 midnight every day. I don't have any crons set. But I found that there are some system crons. Are they really important, can they cause any problem at 12 midnigh? # ls cron*.* cron.deny cron.d: sysstat cron.daily: 0anacron 0logwatch cups ... (2 Replies)
Discussion started by: shantanuo
2 Replies

6. Shell Programming and Scripting

By default connect to the oracle at the time login to Unix

Hi, How to set or what I have to do, so that at the time of login into unix, it will connect by default to Oracle server. Thanks Rajesh (3 Replies)
Discussion started by: rajesh08
3 Replies

7. Red Hat

Freezing, Request Timeout - performance problem

Hi, The server is Redhat 5 32bit. It is not easy to produce the problem so I will just write the experienced problems not how it is produced. 1) During login, it shows the last login time and then waits for 3-4 seconds to give shell prompt (considerable) 2) Sometimes the connection window... (2 Replies)
Discussion started by: royalliege
2 Replies

8. AIX

Clear wtmp

Hello, Is there a difference between the following commands besides consider the file permissions? /usr/sbin/acct/nulladm /var/adm/wtmp >/var/adm/wtmp cat /dev/null >/var/adm/wtmp Today I tried the second command and it worked... (2 Replies)
Discussion started by: x_adm
2 Replies

9. Programming

Unix Shell background processing

So I made my own unix shell, but i want to make a background process when using the & appended to the end, so far most of the commands seem to work (except cd, but thats another story) right now here is what I have got. Im thinking maybe I shouldn't be using switch and maybe switch it to... (27 Replies)
Discussion started by: Mercfh
27 Replies

10. AIX

How to find the year in last login details

Hi Friends I have a query. we had a requirement to see the last login details of our users so I ran the command last <username> and the output i get is: wtmp begins Apr 17 21:48 Now I need to know couple of things: 1. How can I see the year this log is being read from wtmp file 2. Is... (4 Replies)
Discussion started by: nathandrake13
4 Replies

11. Shell Programming and Scripting

Making wtmp files readable one at a time

New Unix user/scripter here. Been trying to solve a problem for two days now with no luck. Hoping someone here has an answer. Essentially I have a list of wtmp files which I have decompressed and copied to a temporary directory. Using the following command I can turn them into a file than can... (4 Replies)
Discussion started by: Stryfe16
4 Replies

12. Shell Programming and Scripting

Script to truncate wtmp files

Hi, Does anyone have a script to truncate the wtmp file. I want to move older entries in the wtmp to a new file and move it out of var/adm and shrink the size. (4 Replies)
Discussion started by: ElizabethPJ
4 Replies

13. Shell Programming and Scripting

How to find all files modified from midnight (i.e. from midnight (00:00:00)) of current date?

Hi there! I was wondering if someone could help me with the following: I'm trying to find all files within a directory which have been modified since midnight of the current date. Any help would be appreciated. Thank you kindly. (6 Replies)
Discussion started by: Jimmy_the_tulip
6 Replies

14. What is on Your Mind?

Not enough information...

I appreciate the fact that rules are for everyone and I screwed up by not putting a screen printout in code brackets... However, I was a bit dismayed when I received the following and tried to reply to say "Thank you" for sending me the reminder. I could not reply and had no idea what the... (4 Replies)
Discussion started by: RogerBaran
4 Replies

15. Shell Programming and Scripting

The command last

Hello All, I would like to ask your kind help. Could you please advise how can I identify and printout all users, who has logged to our server from more than 10 different computers/machines by using the command last? Thank you in advance for your help. Janmesz (13 Replies)
Discussion started by: Janmesz7
13 Replies

Featured Tech Videos