DU(1) DU(1)
NAME
du - disk usage
SYNOPSIS
du [ -anstu ] [ -b blocksize ] [file ...]
DESCRIPTION
Du writes to standard output the total size of files speci-
fied as arguments. Directories are recursively tallied. A
summary line is produced for each argument file and subdi-
rectory. If no filenames are provided, the command operates
on the current directory.
Output sums are rounded up to the nearest 1k unit (1024
bytes). By default, storage is assumed to be quantised in
units of 1024 bytes. The -b option sets a different
blocksize for quantisation, optionally suffixed by k for
units of kilobytes; output is still in 1k units.
Du accepts the following options:
-a Output usage information for all subordinate files, not
just directories.
-n Output just the filenames (but see the -t option
below); implies -a.
-s Print only the summary line for each file.
-t Display the last-modified time for each file, not its
size; when used with the -n option, outputs the file-
name, modification time (seconds since the epoch), size
(in bytes), and checksum. The checksum field is always
0; it is a place-holder for a value computed by another
command in a pipeline.
-u Display the last-accessed time for each file, not its
size.
SOURCE
/appl/cmd/du.b
SEE ALSO
sh(1), sys-stat(2)
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