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Top Forums Shell Programming and Scripting Making wtmp files readable one at a time Post 302599485 by Stryfe16 on Friday 17th of February 2012 09:23:48 AM
Old 02-17-2012
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 normally be read with the cat command:

last -f wtmpfile > wtmpfilecopy

The problem is that I need to do this to all the files while retaining the beginning of the original file name. So it doesn't matter if anything is added to the end of the file name as long at the original file name is the beginning of the copies name. This will be going into a script. I've been experimenting with for loops as I found some information that looked promising but still have not found success.

I hope this is enough information and I hope someone out there knows a solution.

Thanks in advance!
 

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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)
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