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+'\" -*- coding: UTF-8 -*-
+.\" Copyright (C) 2010 Michael Krapp
+.\"
+.\" This program is free software; you can redistribute it and/or modify
+.\" it under the terms of the GNU General Public License as published by 
+.\" the Free Software Foundation; either version 2 of the License, or
+.\" (at your option) any later version.
+.\"
+.\" This program is distributed in the hope that it will be useful,
+.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
+.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the  
+.\" GNU General Public License for more details.
+.\"
+.\" You should have received a copy of the GNU General Public License
+.\" along with this program; if not, write to the Free Software
+.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+.\"
+.TH UTMPDUMP "1" "July 2012" "util-linux" "System Administration"
+.SH NAME
+utmpdump \- dump UTMP and WTMP files in raw format
+.SH SYNOPSIS
+utmpdump [\-frh] [ filename ]
+.SH DESCRIPTION
+.B utmpdump
+is a simple program to dump UTMP and WTMP files in raw format, so they
+can be examined.
+.B utmpdump
+eads from stdin unless a 
+.I filename
+is passed.
+.SH OPTIONS
+.IP "\fB\-f\fR, \fB\-\-follow\fP"
+Output appended data as the file grows.
+.IP "\fB\-r\fR, \fB\-\-reverse\fP
+Undump, write back edited login information into utmp or wtmp files.
+.IP "\fB\-h\fR, \fB\-\-help\fP"
+Print a help text and exit.
+.IP "\fB\-V\fR, \fB\-\-version\fP"
+Output version information and exit.
+.SH NOTES
+.B utmpdump
+can be useful in cases of corrupted utmp or wtmp entries.  It can dump
+out utmp/wtmp to an ASCII file, then that file can be edited to remove
+bogus entries and reintegrated, using
+.PP 
+.RS
+utmpdump -r < ascii_file > wtmp
+.RE
+.PP
+but be warned as
+.B utmpdump
+was written for debugging purpose only.
+.SH BUGS
+You may
+.B not
+use the option
+.B \-r
+as the format for the utmp/wtmp files strongly depends on the input
+format.  This tool was
+.B not
+written for normal use but for debugging.
+.SH AUTHOR
+Michael Krapp
+.SH "SEE ALSO"
+.BR last (1),
+.BR w (1),
+.BR who (1),
+.BR utmp (5)
+.SH AVAILABILITY
+The utmpdump command is part of the util-linux package and is available
+from
+.UR ftp://\:ftp.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
+Linux Kernel Archive
+.UE .