You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
63 lines
1.4 KiB
63 lines
1.4 KiB
.\" -*- nroff -*-
|
|
.TH FILEFRAG 8 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
|
|
.SH NAME
|
|
filefrag \- report on file fragmentation
|
|
.SH SYNOPSIS
|
|
.B filefrag
|
|
[
|
|
.BI \-b blocksize
|
|
]
|
|
[
|
|
.B \-BeksvxX
|
|
]
|
|
[
|
|
.I files...
|
|
]
|
|
.SH DESCRIPTION
|
|
.B 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.
|
|
.PP
|
|
The
|
|
.B 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.
|
|
.SH OPTIONS
|
|
.TP
|
|
.B \-B
|
|
Force the use of the older FIBMAP ioctl instead of the FIEMAP ioctl for
|
|
testing purposes.
|
|
.TP
|
|
.BI \-b blocksize
|
|
Use
|
|
.I blocksize
|
|
in bytes for output instead of the filesystem blocksize.
|
|
For compatibility with earlier versions of
|
|
.BR filefrag ,
|
|
if
|
|
.I blocksize
|
|
is unspecified it defaults to 1024 bytes.
|
|
.TP
|
|
.B \-e
|
|
Print output in extent format, even for block-mapped files.
|
|
.TP
|
|
.B \-k
|
|
Use 1024\-byte blocksize for output (identical to '\-b 1024').
|
|
.TP
|
|
.B \-s
|
|
Sync the file before requesting the mapping.
|
|
.TP
|
|
.B \-v
|
|
Be verbose when checking for file fragmentation.
|
|
.TP
|
|
.B \-x
|
|
Display mapping of extended attributes.
|
|
.TP
|
|
.B \-X
|
|
Display extent block numbers in hexadecimal format.
|
|
.SH AUTHOR
|
|
.B filefrag
|
|
was written by Theodore Ts'o <tytso@mit.edu>.
|