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
The options are:
−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 Disk usage is normally reported for the entire directory hierarchy below each of the given file operands. The −x option can be used to restrict reporting to only those files that have the same device as the file specified by the file operand.
−t type Disk usage is normally reported for the entire directory hierarchy below each of the given file operands. The −t type argument can be used to 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.
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
Files with holes in them will get an incorrect block count.
SEE ALSO
df(1), bdf(1), quot(1m), checklist(4).
STANDARDS CONFORMANCE
du: SVID2, XPG2, XPG3
Hewlett-Packard Company — HP-UX Release 8.05: June 1991