138 lines
2.2 KiB
Plaintext
138 lines
2.2 KiB
Plaintext
|
.TH DU 1
|
||
|
|
.SH NAME
|
||
|
|
du \- disk usage
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.B du
|
||
|
|
[
|
||
|
|
.B -aefhnqstu
|
||
|
|
] [
|
||
|
|
.B -b
|
||
|
|
.I size
|
||
|
|
] [
|
||
|
|
.B -p
|
||
|
|
.I SI-prefix
|
||
|
|
] [
|
||
|
|
.I file ...
|
||
|
|
]
|
||
|
|
.SH DESCRIPTION
|
||
|
|
.I Du
|
||
|
|
gives the number of Kbytes allocated to data blocks
|
||
|
|
of named
|
||
|
|
.I files
|
||
|
|
and, recursively, of files in named directories.
|
||
|
|
It assumes storage is quantized in units of 1024 bytes (Kbytes) by default.
|
||
|
|
Other values can be set by the
|
||
|
|
.B -b
|
||
|
|
option;
|
||
|
|
.I size
|
||
|
|
is the number of bytes, optionally suffixed
|
||
|
|
.B k
|
||
|
|
to specify multiplication by 1024.
|
||
|
|
If
|
||
|
|
.I file
|
||
|
|
is missing,
|
||
|
|
the current directory is used.
|
||
|
|
The count for a directory includes the counts of the
|
||
|
|
contained files and directories.
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -a
|
||
|
|
option prints the number of blocks
|
||
|
|
for every file in a directory.
|
||
|
|
Normally counts are printed only for contained directories.
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -f
|
||
|
|
option suppresses the printing of warning messages.
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -n
|
||
|
|
option prints the size in bytes and the name of each file; it sets
|
||
|
|
.BR -a .
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -t
|
||
|
|
option prints, in the format of
|
||
|
|
.B du
|
||
|
|
.BR -n ,
|
||
|
|
the modified time of
|
||
|
|
each file rather than the size.
|
||
|
|
If the options
|
||
|
|
.B -tu
|
||
|
|
are specified then the accessed time is printed.
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -q
|
||
|
|
option prints, in the format of
|
||
|
|
.B du
|
||
|
|
.BR -n ,
|
||
|
|
the QID path of
|
||
|
|
each file rather than the size.
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -s
|
||
|
|
option causes
|
||
|
|
.I du
|
||
|
|
to descend the hierarchy as always, but to print only a summary line
|
||
|
|
for each
|
||
|
|
.IR file .
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -e
|
||
|
|
option causes
|
||
|
|
.I du
|
||
|
|
to print values (sizes, times or QID paths)
|
||
|
|
in `scientific notation' via
|
||
|
|
.IR print (2)'s
|
||
|
|
.BR %g .
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -h
|
||
|
|
option causes
|
||
|
|
.I du
|
||
|
|
to print values (sizes, times or QID paths)
|
||
|
|
in scientific notation,
|
||
|
|
scaled to less than 1024, and with a suitable SI prefix
|
||
|
|
(e.g.,
|
||
|
|
.L G
|
||
|
|
for binary gigabytes).
|
||
|
|
.PP
|
||
|
|
The
|
||
|
|
.B -p
|
||
|
|
option causes
|
||
|
|
.I du
|
||
|
|
to print values (sizes, times or QID paths)
|
||
|
|
in units of
|
||
|
|
.IR SI-prefix .
|
||
|
|
Case is ignored when looking up
|
||
|
|
.IR SI-prefix .
|
||
|
|
An empty
|
||
|
|
.IR SI-prefix
|
||
|
|
corresponds to a scale factor of 1 (e.g., print sizes in bytes).
|
||
|
|
.\" .PP
|
||
|
|
.\" The
|
||
|
|
.\" .B -r
|
||
|
|
.\" option causes
|
||
|
|
.\" .I du
|
||
|
|
.\" to read and discard every byte of every file encountered.
|
||
|
|
.SH EXAMPLES
|
||
|
|
Print the size of
|
||
|
|
.L /tmp
|
||
|
|
in fractional binary gigabytes:
|
||
|
|
.IP
|
||
|
|
.EX
|
||
|
|
% du -sepg /tmp
|
||
|
|
\&.6960154 /tmp
|
||
|
|
.EE
|
||
|
|
.LP
|
||
|
|
Print the size of
|
||
|
|
.L /tmp
|
||
|
|
in bytes and in scientific notation:
|
||
|
|
.IP
|
||
|
|
.EX
|
||
|
|
% du -sep '' /tmp
|
||
|
|
7.473408e+08 /tmp
|
||
|
|
.EE
|
||
|
|
.SH SOURCE
|
||
|
|
.B /sys/src/cmd/du.c
|