term% cat index.txt DU(1) General Commands Manual DU(1)
NAME
du - disk usage
SYNOPSIS
du [ -aefhnqstu ] [ -b size ] [ -p SI-prefix ] [ file ... ]
DESCRIPTION
Du gives the number of Kbytes allocated to data blocks of named 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 option; size is the number of bytes, optionally suf‐
fixed k to specify multiplication by 1024. If file is missing, the
current directory is used. The count for a directory includes the
counts of the contained files and directories.
The -a option prints the number of blocks for every file in a direc‐
tory. Normally counts are printed only for contained directories.
The -f option suppresses the printing of warning messages.
The -n option prints the size in bytes and the name of each file; it
sets -a.
The -t option prints, in the format of du -n, the modified time of each
file rather than the size. If the options -tu are specified then the
accessed time is printed.
The -q option prints, in the format of du -n, the QID path of each file
rather than the size.
The -s option causes du to descend the hierarchy as always, but to
print only a summary line for each file.
The -e option causes du to print values (sizes, times or QID paths) in
`scientific notation' via print(2)'s %g.
The -h option causes 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., for binary gigabytes).
The -p option causes du to print values (sizes, times or QID paths) in
units of SI-prefix. Case is ignored when looking up SI-prefix. An
empty SI-prefix corresponds to a scale factor of 1 (e.g., print sizes
in bytes).
EXAMPLES
Print the size of in fractional binary gigabytes:
% du -sepg /tmp
.6960154 /tmp
Print the size of in bytes and in scientific notation:
% du -sep '' /tmp
7.473408e+08 /tmp
SOURCE
/sys/src/cmd/du.c
DU(1)