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Top Forums Shell Programming and Scripting Script to truncate wtmp files Post 302903005 by ElizabethPJ on Friday 23rd of May 2014 11:48:39 AM
Old 05-23-2014
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.
 

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WCAT(1) 							   User Commands							   WCAT(1)

NAME
wcat - printout wtmp entries SYNOPSIS
wcat [-w wtmp|-] [-adX[3|4]] [-s start] [-e end] [-b H[:M[:S]]] [--help] [--version] SYNOPSIS
Wcat provides an easy way to recover trimmed information from wtmp binary files. This tool can be useful for scripts that need only partial information from them. Notice that wcat output is binary wtmp entries so if this information is printed out to a terminal or screen it might mess it up. A better use of wcat would be: wcat | rawtmp -w - OPTIONS
-w wtmp|- Read alternate wtmp file. -X[3] Read tacacs 3.x wtmp format. -X4 Read tacacs 4.0 wtmp format. -d Output time in MMM DD HH:MM:SS date format. -a Print contents of ut_addr (if it exists) instead of ut_host. -s start Display accounting info from `start'. -e end Display accounting info up to `end'. -b H:M:S Show accounting info from the last few hours/minutes/seconds. --help Print this help message. --version Print the version of rawtmp. SEE ALSO
sac(8), ac(1), last(1), rawtmp(1), wtmp(5), netdate(8L) FILES
/var/log/wtmp login database /usr/adm/radacct/.../detail Radius accounting logs AUTHOR
The upstream author of wcat is Steve Baker (ice@mama.indstate.edu) This manpage was written by Javier Fernandez-Sanguino based on help2man for the Debian GNU/Linux distribution (but can be used by others). wcat v1.0 (c) 2001 by Steve Baker January 2003 WCAT(1)
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