uses SIZE-byte blocks.
prints size in bytes.
produces a grand total.
dereferences PATHs when symbolic link.
prints sizes in human-readable format (e.g., 1K, 234M, 2G).
is equivalent to --block-size=1024.
counts sizes many times if hard-linked.
dereferences all symbolic links.
is equivalent to --block-size=1048576.
has implementation-dependent behavior.
does not include size of subdirectories.
excludes files that match any pattern in FILE.
excludes files that match PAT.
prints 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.
outputs version information and exits.