192 lines
5.3 KiB
Groff
192 lines
5.3 KiB
Groff
.\" Copyright (c) 1990, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. All advertising materials mentioning features or use of this software
|
|
.\" must display the following acknowledgement:
|
|
.\" This product includes software developed by the University of
|
|
.\" California, Berkeley and its contributors.
|
|
.\" 4. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)du.1 8.2 (Berkeley) 4/1/94
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd November 6, 2008
|
|
.Dt DU 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm du
|
|
.Nd display disk usage statistics
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl A
|
|
.Op Fl H | L | P
|
|
.Op Fl a | s | d Ar depth | Fl t Ar threshold
|
|
.Op Fl c
|
|
.Op Fl l
|
|
.Op Fl h | k | m | B Ar blocksize
|
|
.Op Fl n
|
|
.Op Fl x
|
|
.Op Fl I Ar mask
|
|
.Op Ar
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility displays the file system block usage for each file argument
|
|
and for each directory in the file hierarchy rooted in each directory
|
|
argument.
|
|
If no file is specified, the block usage of the hierarchy rooted in
|
|
the current directory is displayed.
|
|
.Pp
|
|
The options are as follows:
|
|
.Bl -tag -width indent
|
|
.It Fl A
|
|
Display the apparent size instead of the disk usage.
|
|
This can be helpful when operating on compressed volumes or sparse files.
|
|
.It Fl B Ar blocksize
|
|
Calculate block counts in
|
|
.Ar blocksize
|
|
byte blocks.
|
|
This is different from the
|
|
.Fl k, m
|
|
options or setting
|
|
.Ev BLOCKSIZE
|
|
and gives an estimate of how much space the examined file hierarchy would
|
|
require on a filesystem with the given
|
|
.Ar blocksize .
|
|
Unless in
|
|
.Fl A
|
|
mode,
|
|
.Ar blocksize
|
|
is rounded up to the next multiple of 512.
|
|
.It Fl H
|
|
Symbolic links on the command line are followed, symbolic links in file
|
|
hierarchies are not followed.
|
|
.It Fl L
|
|
Symbolic links on the command line and in file hierarchies are followed.
|
|
.It Fl I Ar mask
|
|
Ignore files and directories matching the specified
|
|
.Ar mask .
|
|
.It Fl P
|
|
No symbolic links are followed.
|
|
This is the default.
|
|
.It Fl a
|
|
Display an entry for each file in a file hierarchy.
|
|
.It Fl h
|
|
"Human-readable" output.
|
|
Use unit suffixes: Byte, Kilobyte, Megabyte,
|
|
Gigabyte, Terabyte and Petabyte.
|
|
.It Fl r
|
|
Generate messages about directories that cannot be read, files
|
|
that cannot be opened, and so on.
|
|
This is the default case.
|
|
This option exists solely for conformance with
|
|
.St -xpg4 .
|
|
.It Fl s
|
|
Display an entry for each specified file.
|
|
(Equivalent to
|
|
.Fl d Li 0 )
|
|
.It Fl t Ar threshold
|
|
Display only entries for which size exceeds
|
|
.Ar threshold .
|
|
If
|
|
.Ar threshold
|
|
is negative, display only entries for which size is less than the absolute
|
|
value of
|
|
.Ar threshold .
|
|
.It Fl d Ar depth
|
|
Display an entry for all files and directories
|
|
.Ar depth
|
|
directories deep.
|
|
.It Fl c
|
|
Display a grand total.
|
|
.It Fl k
|
|
Display block counts in 1024-byte (1-Kbyte) blocks.
|
|
.It Fl l
|
|
If a file has multiple hard links, count its size many times.
|
|
The default behavior of
|
|
.Nm
|
|
is to count files with multiple hard links only once.
|
|
When the
|
|
.Fl l
|
|
option is specified, the hard link checks are disabled, and these files
|
|
are counted (and displayed) as many times as they are found.
|
|
.It Fl m
|
|
Display block counts in 1048576-byte (1-Mbyte) blocks.
|
|
.It Fl n
|
|
Ignore files and directories with user
|
|
.Dq nodump
|
|
flag
|
|
.Pq Dv UF_NODUMP
|
|
set.
|
|
.It Fl x
|
|
File system mount points are not traversed.
|
|
.El
|
|
.Pp
|
|
The
|
|
.Nm
|
|
utility counts the storage used by symbolic links and not the files they
|
|
reference unless the
|
|
.Fl H
|
|
or
|
|
.Fl L
|
|
option is specified.
|
|
If either the
|
|
.Fl H
|
|
or
|
|
.Fl L
|
|
options are specified, storage used by any symbolic links which are
|
|
followed is not counted or displayed.
|
|
.Sh ENVIRONMENT
|
|
.Bl -tag -width BLOCKSIZE
|
|
.It Ev BLOCKSIZE
|
|
If the environment variable
|
|
.Ev BLOCKSIZE
|
|
is set, and the
|
|
.Fl k, m
|
|
or
|
|
.Fl h
|
|
options are not specified, the block counts will be displayed in units of
|
|
that block size.
|
|
If
|
|
.Ev BLOCKSIZE
|
|
is not set, and the
|
|
.Fl k, m
|
|
or
|
|
.Fl h
|
|
options are not specified, the block counts will be displayed in 512-byte
|
|
blocks.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr df 1 ,
|
|
.Xr chflags 2 ,
|
|
.Xr fts 3 ,
|
|
.Xr symlink 7 ,
|
|
.Xr quot 8
|
|
.Sh HISTORY
|
|
A
|
|
.Nm
|
|
command appeared in
|
|
.At v1 .
|