FILEFRAG(8)                                                                                                          FILEFRAG(8)



NAME
       filefrag - report on file fragmentation

SYNOPSIS
       filefrag [ -Bbsvx ] [ files...  ]

DESCRIPTION
       filefrag  reports  on  how badly fragmented a particular file might be.  It makes allowances for indirect blocks for ext2
       and ext3 filesystems, but can be used on files for any filesystem.

       The filefrag program initially attempts to get the extent information using FIEMAP ioctl  which  is  more  efficient  and
       faster.  If FIEMAP is not supported then filefrag will fall back to using FIBMAP.

OPTIONS
       -B     Force the use of the older FIBMAP ioctl instead of the FIEMAP ioctl for testing purposes.

       -b     Use 1024 byte blocksize for the output.

       -s     Sync the file before requesting the mapping.

       -v     Be verbose when checking for file fragmentation.

       -x     Display mapping of extended attributes.

AUTHOR
       filefrag was written by Theodore Ts'o <tytsoATmit.edu>.



E2fsprogs version 1.41.12                                   May 2010                                                 FILEFRAG(8)