Summarize disk usage of each FILE, recursively for directories.

Mandatory arguments to long options are mandatory for short options too.

-a, --all

write counts for all files, not just directories

--apparent-size

print apparent sizes, rather than disk usage; although the apparent size is usually smaller, it may be larger due to holes in (`sparse') files, internal fragmentation, indirect blocks, and the like

-B, --block-size=SIZE use SIZE-byte blocks

-b, --bytes

equivalent to `--apparent-size --block-size=1'

-c, --total

produce a grand total

-D, --dereference-args

dereference FILEs that are symbolic links

--files0-from=F

summarize disk usage of the NUL-terminated file names specified in file F

-H

like --si, but also evokes a warning; will soon change to be equivalent to --dereference-args (-D)

-h, --human-readable

print sizes in human readable format (e.g., 1K 234M 2G)

--si

like -h, but use powers of 1000 not 1024

-k

like --block-size=1K

-l, --count-links

count sizes many times if hard linked

-m

like --block-size=1M

-L, --dereference

dereference all symbolic links

-P, --no-dereference

don't follow any symbolic links (this is the default)

-0, --null

end each output line with 0 byte rather than newline

-S, --separate-dirs

do not include size of subdirectories

-s, --summarize

display only a total for each argument

-x, --one-file-system

skip directories on different file systems

-X FILE, --exclude-from=FILE

Exclude files that match any pattern in FILE.

--exclude=PATTERN Exclude files that match PATTERN.

--max-depth=N

print the total for a directory (or file, with --all) only if it is N or fewer levels below the command line argument; --max-depth=0 is the same as --summarize

--time

show time of the last modification of any file in the directory, or any of its subdirectories

--time=WORD

show time as WORD instead of modification time: atime, access, use, ctime or status

--time-style=STYLE show times using style STYLE:

full-iso, long-iso, iso, +FORMAT FORMAT is interpreted like `date'

--help

display this help and exit

--version

output version information and exit

SIZE may be (or may be an integer optionally followed by) one of following: kB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y.

du --exclude='*.o'

will skip all files and subdirectories ending in .o (including the file .o itself).

info du

should give you access to the complete manual.