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filefrag — Report how badly fragmented a particular file might be. More information: <https://manned.org/filefr

Submitted by: @import:tldr-pages·Mar 2, 2026·

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reportcommandfilefragclifragmentedparticularhowbadly

linux

Problem

How to use the filefrag command: Report how badly fragmented a particular file might be. More information: <https://manned.org/filefrag>.

Solution

filefrag — Report how badly fragmented a particular file might be. More information: <https://manned.org/filefrag>.

Display a report for one or more files:

filefrag {{path/to/file1 path/to/file2 ...}}

Display a report using a 1024 byte blocksize:

filefrag -k {{path/to/file}}

Display a report using a certain blocksize:

filefrag -b{{1024|1K|1M|1G|...}} {{path/to/file}}

Sync the file before requesting the mapping:

filefrag -s {{path/to/file1 path/to/file2 ...}}

Display mapping of extended attributes:

filefrag -x {{path/to/file1 path/to/file2 ...}}

Display a report with verbose information:

filefrag -v {{path/to/file1 path/to/file2 ...}}

Code Snippets

Display a report for one or more files

filefrag {{path/to/file1 path/to/file2 ...}}

Display a report using a 1024 byte blocksize

filefrag -k {{path/to/file}}

Display a report using a certain blocksize

filefrag -b{{1024|1K|1M|1G|...}} {{path/to/file}}

Sync the file before requesting the mapping

filefrag -s {{path/to/file1 path/to/file2 ...}}

Display mapping of extended attributes

filefrag -x {{path/to/file1 path/to/file2 ...}}

Context

tldr-pages: linux/filefrag

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