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freebsd-dev/usr.bin/du/du.1

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BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.\" 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
$Id$ -> $FreeBSD$
1999-08-28 01:08:13 +00:00
.\" $FreeBSD$
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.\"
Add two new options to du(1): -A Display the apparent size instead of the disk usage. This can be helpful when operating on compressed volumes or sparse files. -B blocksize Calculate block counts in blocksize byte blocks. This is differ- ent from the -k, -m options or setting BLOCKSIZE and gives an estimate of how much space the examined file hierachy would require on a filesystem with the given blocksize. Unless in -A mode, blocksize is rounded up to the next multiple of 512. The former is similar to GNU's du(1) --apparent-size. The latter is different from what GNU's du(1) -B does, which is equivalent to setting BLOCKSIZE in our implementation and is rather pointless as it doesn't add any real value (i.e. you can achieve the same with a simple awk-script). No change in the normal output or processing. Reviewed by: keramida@, Peter French Otherwise silience from: freebsd-hackers@
2008-11-06 16:30:38 +00:00
.Dd November 6, 2008
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.Dt DU 1
.Os
.Sh NAME
.Nm du
.Nd display disk usage statistics
.Sh SYNOPSIS
mdoc(7) police: use the new features of the Nm macro.
2000-11-20 19:21:22 +00:00
.Nm
Add two new options to du(1): -A Display the apparent size instead of the disk usage. This can be helpful when operating on compressed volumes or sparse files. -B blocksize Calculate block counts in blocksize byte blocks. This is differ- ent from the -k, -m options or setting BLOCKSIZE and gives an estimate of how much space the examined file hierachy would require on a filesystem with the given blocksize. Unless in -A mode, blocksize is rounded up to the next multiple of 512. The former is similar to GNU's du(1) --apparent-size. The latter is different from what GNU's du(1) -B does, which is equivalent to setting BLOCKSIZE in our implementation and is rather pointless as it doesn't add any real value (i.e. you can achieve the same with a simple awk-script). No change in the normal output or processing. Reviewed by: keramida@, Peter French Otherwise silience from: freebsd-hackers@
2008-11-06 16:30:38 +00:00
.Op Fl A
Make it clear that -P is the default. PR: docs/27629
2001-05-25 07:32:58 +00:00
.Op Fl H | L | P
Add a 'depth (-d#)' flag to du patched (context diff), compiled (w/ -Wall) and tested Submitted by: John-Mark Gurney <jmg@nike.efn.org>
1996-10-23 06:53:57 +00:00
.Op Fl a | s | d Ar depth
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
.Op Fl c
Implement from scratch a -l option for du(1), to match the same option of the GNU utility. The default behavior of our original `du' is to count hardlinked files only once for each invocation of the utility. With the new -l option they count towards the final size every time they are found. PR: bin/117944 Submitted by: keramida Reviewed by: des, obrien MFC after: 2 weeks
2008-02-25 19:06:43 +00:00
.Op Fl l
Add two new options to du(1): -A Display the apparent size instead of the disk usage. This can be helpful when operating on compressed volumes or sparse files. -B blocksize Calculate block counts in blocksize byte blocks. This is differ- ent from the -k, -m options or setting BLOCKSIZE and gives an estimate of how much space the examined file hierachy would require on a filesystem with the given blocksize. Unless in -A mode, blocksize is rounded up to the next multiple of 512. The former is similar to GNU's du(1) --apparent-size. The latter is different from what GNU's du(1) -B does, which is equivalent to setting BLOCKSIZE in our implementation and is rather pointless as it doesn't add any real value (i.e. you can achieve the same with a simple awk-script). No change in the normal output or processing. Reviewed by: keramida@, Peter French Otherwise silience from: freebsd-hackers@
2008-11-06 16:30:38 +00:00
.Op Fl h | k | m | B Ar blocksize
o Implement "-n" flag: ignore files and directories with user "nodump" flag set. Useful for calculation dump -h dump size. PR: bin/96864 Submitted by: Dmitry Kazarov Obtained from: NetBSD (man page) MFC after: 1 month
2006-05-06 22:04:59 +00:00
.Op Fl n
BSD 4.4 Lite Usr.bin Sources
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.Op Fl x
Sync program's usage() with manpage's SYNOPSIS.
2005-05-21 09:55:10 +00:00
.Op Fl I Ar mask
Use warnx(), -Wall cleaning and remove unused #include Better use of .Nm and .Ar
2000-03-26 14:21:57 +00:00
.Op Ar
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.Sh DESCRIPTION
The
Use warnx(), -Wall cleaning and remove unused #include Better use of .Nm and .Ar
2000-03-26 14:21:57 +00:00
.Nm
Uniformly refer to a file system as "file system". Approved by: re
2002-12-12 17:26:04 +00:00
utility displays the file system block usage for each file argument
BSD 4.4 Lite Usr.bin Sources
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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:
Use warnx(), -Wall cleaning and remove unused #include Better use of .Nm and .Ar
2000-03-26 14:21:57 +00:00
.Bl -tag -width indent
Add two new options to du(1): -A Display the apparent size instead of the disk usage. This can be helpful when operating on compressed volumes or sparse files. -B blocksize Calculate block counts in blocksize byte blocks. This is differ- ent from the -k, -m options or setting BLOCKSIZE and gives an estimate of how much space the examined file hierachy would require on a filesystem with the given blocksize. Unless in -A mode, blocksize is rounded up to the next multiple of 512. The former is similar to GNU's du(1) --apparent-size. The latter is different from what GNU's du(1) -B does, which is equivalent to setting BLOCKSIZE in our implementation and is rather pointless as it doesn't add any real value (i.e. you can achieve the same with a simple awk-script). No change in the normal output or processing. Reviewed by: keramida@, Peter French Otherwise silience from: freebsd-hackers@
2008-11-06 16:30:38 +00:00
.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 hierachy 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.
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.It Fl H
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
Symbolic links on the command line are followed, symbolic links in file
hierarchies are not followed.
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.It Fl L
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
Symbolic links on the command line and in file hierarchies are followed.
Add '-I mask' cmdline flag to ignore/skip files and subdirectories matching a specified shell-glob mask. Reviewed by: no serious objections on -arch and -audit over the last few months MFC after: 1 month
2001-06-13 06:38:58 +00:00
.It Fl I Ar mask
Ignore files and directories matching the specified
.Ar mask .
Make it clear that -P is the default. PR: docs/27629
2001-05-25 07:32:58 +00:00
.It Fl P
No symbolic links are followed.
This is the default.
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.It Fl a
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
Display an entry for each file in a file hierarchy.
Add human-readable output flag, -h Reviewed by: obrien
2000-01-25 17:46:59 +00:00
.It Fl h
Mechanically kill hard sentence breaks.
2004-07-02 22:22:35 +00:00
"Human-readable" output.
Use unit suffixes: Byte, Kilobyte, Megabyte,
Add a missing full-stop to match the rest of the items in a list.
2004-10-24 00:26:35 +00:00
Gigabyte, Terabyte and Petabyte.
Add human-readable output flag, -h Reviewed by: obrien
2000-01-25 17:46:59 +00:00
.It Fl r
Generate messages about directories that cannot be read, files
Mechanically kill hard sentence breaks.
2004-07-02 22:22:35 +00:00
that cannot be opened, and so on.
This is the default case.
Add human-readable output flag, -h Reviewed by: obrien
2000-01-25 17:46:59 +00:00
This option exists solely for conformance with
.St -xpg4 .
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
.It Fl s
Remove more single-space hard sentence breaks.
2000-03-02 14:54:02 +00:00
Display an entry for each specified file.
(Equivalent to
mdoc(7) police: join split punctuation to macro calls.
2001-08-10 17:35:21 +00:00
.Fl d Li 0 )
Add a 'depth (-d#)' flag to du patched (context diff), compiled (w/ -Wall) and tested Submitted by: John-Mark Gurney <jmg@nike.efn.org>
1996-10-23 06:53:57 +00:00
.It Fl d Ar depth
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
Display an entry for all files and directories
Add a 'depth (-d#)' flag to du patched (context diff), compiled (w/ -Wall) and tested Submitted by: John-Mark Gurney <jmg@nike.efn.org>
1996-10-23 06:53:57 +00:00
.Ar depth
directories deep.
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
.It Fl c
Display a grand total.
Gimme my `-k' option back!
1994-08-10 19:25:34 +00:00
.It Fl k
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
Display block counts in 1024-byte (1-Kbyte) blocks.
Implement from scratch a -l option for du(1), to match the same option of the GNU utility. The default behavior of our original `du' is to count hardlinked files only once for each invocation of the utility. With the new -l option they count towards the final size every time they are found. PR: bin/117944 Submitted by: keramida Reviewed by: des, obrien MFC after: 2 weeks
2008-02-25 19:06:43 +00:00
.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.
Give du(1) a -m option to report in megabytes. Submitted by: Vasily Korytov <deskpot@msk.yell.ru> PR: 66976
2004-06-02 07:09:34 +00:00
.It Fl m
typos. Pointed out by: ru
2004-06-02 07:31:11 +00:00
Display block counts in 1048576-byte (1-Mbyte) blocks.
o Implement "-n" flag: ignore files and directories with user "nodump" flag set. Useful for calculation dump -h dump size. PR: bin/96864 Submitted by: Dmitry Kazarov Obtained from: NetBSD (man page) MFC after: 1 month
2006-05-06 22:04:59 +00:00
.It Fl n
Markup fixes.
2006-09-29 15:20:48 +00:00
Ignore files and directories with user
.Dq nodump
flag
.Pq Dv UF_NODUMP
set.
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.It Fl x
Uniformly refer to a file system as "file system". Approved by: re
2002-12-12 17:26:04 +00:00
File system mount points are not traversed.
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.El
.Pp
Use `The .Nm utility'
2002-04-19 23:44:58 +00:00
The
.Nm
utility counts the storage used by symbolic links and not the files they
BSD 4.4 Lite Usr.bin Sources
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reference unless the
.Fl H
Remove whitespace at EOL.
2001-07-15 08:06:20 +00:00
or
.Fl L
BSD 4.4 Lite Usr.bin Sources
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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 VARIABLES -> .Sh ENVIRONMENT PR: 6599 Reviewed by: phk Submitted by: Josh Gilliam <josh@quick.net>
1998-05-13 07:57:49 +00:00
.Sh ENVIRONMENT
BSD 4.4 Lite Usr.bin Sources
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.Bl -tag -width BLOCKSIZE
.It Ev BLOCKSIZE
Document -k flag.
1997-06-30 06:50:07 +00:00
If the environment variable
BSD 4.4 Lite Usr.bin Sources
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.Ev BLOCKSIZE
Document -k flag.
1997-06-30 06:50:07 +00:00
is set, and the
Add two new options to du(1): -A Display the apparent size instead of the disk usage. This can be helpful when operating on compressed volumes or sparse files. -B blocksize Calculate block counts in blocksize byte blocks. This is differ- ent from the -k, -m options or setting BLOCKSIZE and gives an estimate of how much space the examined file hierachy would require on a filesystem with the given blocksize. Unless in -A mode, blocksize is rounded up to the next multiple of 512. The former is similar to GNU's du(1) --apparent-size. The latter is different from what GNU's du(1) -B does, which is equivalent to setting BLOCKSIZE in our implementation and is rather pointless as it doesn't add any real value (i.e. you can achieve the same with a simple awk-script). No change in the normal output or processing. Reviewed by: keramida@, Peter French Otherwise silience from: freebsd-hackers@
2008-11-06 16:30:38 +00:00
.Fl k, m
or
.Fl h
options are not specified, the block counts will be displayed in units of
that block size.
Remove single-space hard sentence breaks. These degrade the quality of the typeset output, tend to make diffs harder to read and provide bad examples for new-comers to mdoc.
2000-03-01 12:20:22 +00:00
If
* add a -c option which displays the grand total of all files counted. * re-word parts of the man page which I felt were badly worded or ambiguous. * change the behaviour of argument processing so that when more than one of the -P, -H and -L options are specified it will print an error message, rather than choosing the last option specified, this behaviour is more logical and consistent with other utilities. * change the behaviour of argument processing so that negative arguments to the -d option are not allowed. PR: 5388 Submitted by: Niall Smart <rotel@indigo.ie>
1997-12-29 20:56:21 +00:00
.Ev BLOCKSIZE
is not set, and the
Add two new options to du(1): -A Display the apparent size instead of the disk usage. This can be helpful when operating on compressed volumes or sparse files. -B blocksize Calculate block counts in blocksize byte blocks. This is differ- ent from the -k, -m options or setting BLOCKSIZE and gives an estimate of how much space the examined file hierachy would require on a filesystem with the given blocksize. Unless in -A mode, blocksize is rounded up to the next multiple of 512. The former is similar to GNU's du(1) --apparent-size. The latter is different from what GNU's du(1) -B does, which is equivalent to setting BLOCKSIZE in our implementation and is rather pointless as it doesn't add any real value (i.e. you can achieve the same with a simple awk-script). No change in the normal output or processing. Reviewed by: keramida@, Peter French Otherwise silience from: freebsd-hackers@
2008-11-06 16:30:38 +00:00
.Fl k, m
or
.Fl h
options are not specified, the block counts will be displayed in 512-byte
blocks.
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.El
.Sh SEE ALSO
.Xr df 1 ,
o Implement "-n" flag: ignore files and directories with user "nodump" flag set. Useful for calculation dump -h dump size. PR: bin/96864 Submitted by: Dmitry Kazarov Obtained from: NetBSD (man page) MFC after: 1 month
2006-05-06 22:04:59 +00:00
.Xr chflags 2 ,
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.Xr fts 3 ,
.Xr symlink 7 ,
Restore the reference to quot(8).
1995-08-13 09:39:23 +00:00
.Xr quot 8
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
.Sh HISTORY
A
Use warnx(), -Wall cleaning and remove unused #include Better use of .Nm and .Ar
2000-03-26 14:21:57 +00:00
.Nm
BSD 4.4 Lite Usr.bin Sources
1994-05-27 12:33:43 +00:00
command appeared in
[HISTORY] command appeared in Version 1 AT&T UNIX Obtained from: A Quarter Century of UNIX, Peter H. Salus, page 41
1996-08-29 18:06:19 +00:00
.At v1 .
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