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MAN page from Fedora 16 sysvinit-tools-2.88-5.dsf.fc16.x86_64.rpm

UTMPDUMP

Section: Linux System Administrator's Manual (1)
Updated: Februar 8, 2010
Index 

NAME

utmpdump - dump UTMP and WTMP files in raw format 

SYNOPSIS

utmpdump[-froh]filename 

DESCRIPTION

utmpdump is a simple program to dump UTMP and WTMP filesin raw format, so they can be examined. 

OPTIONS

-f
output appended data as the file grows.
-r
reverse. Write back edited login information into utmp or wtmp files.
-o
use old libc5 format.
-h
usage information.

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 canbe edited to remove bogus entries and reintegrated, using

utmpdump -r < ascii file > wtmp

but be warned asutmpdumpwas written for debugging purpose only. 

BUGS

You maynotuse the option -r as the format for theutmp/wtmp files strongly depends on theinput format. This tool wasnotwritten for normal use but for debugging. 

AUTHOR

Michael Krapp 

SEE ALSO

last(1),w(1),who(1),utmp(5),


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
BUGS
AUTHOR
SEE ALSO

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