67 lines
1.9 KiB
Groff
67 lines
1.9 KiB
Groff
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'\" -*- coding: UTF-8 -*-
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.\" Copyright (C) 2010 Michael Krapp
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.\"
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.\" This program is free software; you can redistribute it and/or modify
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.\" it under the terms of the GNU General Public License as published by
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.\" the Free Software Foundation; either version 2 of the License, or
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.\" (at your option) any later version.
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.\"
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.\" This program is distributed in the hope that it will be useful,
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.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
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.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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.\" GNU General Public License for more details.
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.\"
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.\" You should have received a copy of the GNU General Public License
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.\" along with this program; if not, write to the Free Software
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.\" Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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.\"
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.TH UTMPDUMP 1 "Februar 8, 2010" "" "Linux System Administrator's Manual"
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.SH NAME
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utmpdump \- dump UTMP and WTMP files in raw format
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.SH SYNOPSIS
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.B utmpdump
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.RB [ \-froh ]
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.I filename
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.SH DESCRIPTION
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\fButmpdump\fP is a simple program to dump UTMP and WTMP files
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in raw format, so they can be examined.
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.SH OPTIONS
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.IP \fB\-f\fP
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output appended data as the file grows.
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.IP "\fB\-r\fP"
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reverse. Write back edited login information into utmp or wtmp files.
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.IP \fB\-o\fP
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use old libc5 format.
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.IP \fB\-h\fP
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usage information.
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.PP
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utmpdump can be useful in cases of corrupted utmp or wtmp entries.
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It can dump out utmp/wtmp to an ASCII file, then that file can
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be edited to remove bogus entries and reintegrated, using
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.PP
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.sp 1
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.in +1c
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.nf
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\fButmpdump -r < ascii file > wtmp\fP
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.fi
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.in -1c
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.sp 1
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but be warned as
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.B utmpdump
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was written for debugging purpose only.
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.SH BUGS
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You may
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.B not
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use the option \fB\-r\fP as the format for the
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utmp/wtmp files strongly depends on the
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input format. This tool was
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.B not
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written for normal use but for debugging.
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.SH AUTHOR
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Michael Krapp
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.SH "SEE ALSO"
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.BR last (1),
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.BR w (1),
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.BR who (1),
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.BR utmp (5),
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