du(1)
NAME
du − summarize disk usage
SYNOPSIS
du [-a|-s] [-brx] [-t type] [file ...]
DESCRIPTION
du gives the number of 512-byte blocks allocated for all files and (recursively) directories within each directory and file specified by the file operands. The block count includes the indirect blocks of the file. A file with two or more links is only counted once. If file is missing, . is used.
By default, du generates an entry only for the file operands and each directory contained within those hierarchies.
Options
du recognizes the following options:
-a Print entries for each file encountered in the directory hierarchies in addition to the normal output.
-b For each file operand that is a directory for which file system swap has been enabled, print the number of blocks the swap system is currently using.
-r Print messages about directories that cannot be read, files that cannot be accessed, etc. du is normally silent about such conditions.
-s Print only the grand total of disk usage for each of the specified file operands.
-x Restrict reporting to only those files that have the same device as the file specified by the file operand. Disk usage is normally reported for the entire directory hierarchy below each of the given file operands.
-t type Restrict reporting to file systems of the specified type. Accepted types are hfs, cdfs, and nfs (see checklist(4)). Multiple -t type options can be specified. Disk usage is normally reported for the entire directory hierarchy below each of the given file operands.
EXAMPLES
Display disk usage for the current working directory and all directories below it, generating error messages for unreadable directories:
du -r
Display disk usage for the entire file system except for any cdfs or nfs mounted file systems:
du -t hfs /
Display disk usage for files on the root volume (/) only. No usage statistics are collected for any other mounted file systems:
du -x /
WARNINGS
Block counts are incorrect for files that have holes in them.
SEE ALSO
df(1), bdf(1), quot(1m), checklist(4).
STANDARDS CONFORMANCE
du: SVID2, XPG2, XPG3
Hewlett-Packard Company — HP-UX Release 9.0: August 1992