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UTMPDUMP(1)		     System Administration		   UTMPDUMP(1)

NAME
       utmpdump - dump UTMP and WTMP files in raw format

SYNOPSIS
       utmpdump [-frohV] [ filename ]

DESCRIPTION
       utmpdump is a simple program to dump UTMP and WTMP files in raw format,
       so they can be examined.	 utmpdump reads from stdin unless  a  filename
       is passed.

OPTIONS
       -f, --follow
	      Output appended data as the file grows.

       -r, --reverse
	      Undump,  write  back  edited  login information into the utmp or
	      wtmp files.

       -o, --output file
	      Write command output to file instead of standard output.

       -h, --help
	      Display help text and exit.

       -V, --version
	      Display version information and exit.

NOTES
       utmpdump can be useful in cases of corrupted utmp or wtmp entries.   It
       can  dump  out  utmp/wtmp  to an ASCII file, whic can then be edited to
       remove bogus entries and reintegrated, using

	      utmpdump -r < ascii_file > wtmp

       but be warned, as utmpdump was written for debugging purposes only.

BUGS
       You may not use the -r option, as the format for	 the  utmp/wtmp	 files
       strongly	 depends  on  the input format.	 This tool was not written for
       normal use, but for debugging only.

AUTHOR
       Michael Krapp

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

AVAILABILITY
       The utmpdump command is part of the util-linux package and is available
       from  Linux  Kernel Archive ⟨ftp://ftp.kernel.org/pub/linux/utils/util-
       linux/⟩.

util-linux			   July 2012			   UTMPDUMP(1)

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