UTMPDUMP(1)		     System Administration		   UTMPDUMP(1)



NAME
       utmpdump - dump UTMP and WTMP files in raw format

SYNOPSIS
       utmpdump [-frh] [ filename ]

DESCRIPTION
       utmpdump is a simple program to dump UTMP and WTMP files in raw format,
       so they can be examined.	 utmpdump eads 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 utmp or wtmp
	      files.

       -h, --help
	      Print a help text and exit.

       -V, --version
	      Output 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, then that file can be edited
       to remove bogus entries and reintegrated, using

	      utmpdump -r < ascii_file > wtmp

       but be warned as utmpdump was written for debugging purpose only.

BUGS
       You may not use the option -r 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.

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)