filefrag man page on ElementaryOS

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FILEFRAG(8)							   FILEFRAG(8)

NAME
       filefrag - report on file fragmentation

SYNOPSIS
       filefrag [ -bblocksize ] [ -BeksvxX ] [ 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.

       -bblocksize
	      Use blocksize in bytes for  output  instead  of  the  filesystem
	      blocksize.  For compatibility with earlier versions of filefrag,
	      if blocksize is unspecified it defaults to 1024 bytes.

       -e     Print output in extent format, even for block-mapped files.

       -k     Use 1024-byte blocksize for output (identical to '-b 1024').

       -s     Sync the file before requesting the mapping.

       -v     Be verbose when checking for file fragmentation.

       -x     Display mapping of extended attributes.

       -X     Display extent block numbers in hexadecimal format.

AUTHOR
       filefrag was written by Theodore Ts'o <tytso@mit.edu>.

E2fsprogs version 1.42.9	 February 2014			   FILEFRAG(8)
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