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.Dd 2015-10-08
.Dt DU 1
.Os sbase
.Sh NAME
.Nm du
.Nd display disk usage statistics
.Sh SYNOPSIS
.Nm
.Op Fl a | s
.Op Fl d Ar depth
.Op Fl h
.Op Fl k
.Op Fl H | L | P
.Op Fl x
.Op Ar file ...
.Sh DESCRIPTION
.Nm
displays the file system block usage for each
.Ar file
argument and for each directory in the file hierarchy rooted in directory
argument.
If no
.Ar file
is specified, the block usage of the hierarchy rooted in the current directory
is displayed.
.Sh OPTIONS
.Bl -tag -width Ds
.It Fl a
Display an entry for each file in the file hierarchy.
.It Fl s
Display only the grand total for the specified files.
.It Fl d Ar depth
Maximum directory depth to print files and directories.
.It Fl h
Enable human-readable output.
.It Fl k
By default all sizes are reported in 512-byte block counts.
The
.Fl k
option causes the numbers to be reported in kilobyte counts.
.It Fl H
Only dereference symbolic links that are passed as command line arguments when
recursively traversing directories.
.It Fl L
Always dereference symbolic links while recursively traversing directories.
.It Fl P
Don't dereference symbolic links.
This is the default.
.It Fl x
Do not traverse file systems mount points.
.El
.Sh STANDARDS
The
.Nm
utility is compliant with the
.St -p1003.1-2013
specification.
.Pp
The
.Op Fl dhP
flags are an extension to that specification.