1.\" Copyright (c) 1990 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.roff% 5.\" 6.\" @(#)du.1 6.13 (Berkeley) 06/20/91 7.\" 8.Dd 9.Dt DU 1 10.Os BSD 4.4 11.Sh NAME 12.Nm du 13.Nd display disk usage statistics 14.Sh SYNOPSIS 15.Nm du 16.Op Fl a Li \&| Fl s 17.Op Fl kx 18.Op Ar file ... 19.Sh DESCRIPTION 20The 21.Nm du 22utility displays the file system block usage for each file argument 23and for each directory in the file hierarchy rooted in each directory 24argument. 25If no file is specified, the block usage of the hierarchy rooted in 26the current directory is displayed. 27.Pp 28The options are as follows: 29.Bl -tag -width Ds 30.It Fl a 31Display an entry for each file in the file hierarchy. 32.It Fl k 33By default, 34.Nm du 35displays the number of blocks as returned by the 36.Xr stat 2 37system call, i.e. 512-byte blocks. 38If the 39.Fl k 40flag is specified, the number displayed is the number of 1024-byte 41blocks. 42Partial numbers of blocks are rounded up. 43.It Fl s 44Display only the grand total for the specified files. 45.It Fl x 46Filesystem mount points are not traversed. 47.El 48.Pp 49If 50.Ar file 51is a symbolic link referencing an existing file, the file referenced 52by the link is reported on instead of the link itself. 53.Pp 54Files having multiple hard links are counted (and displayed) a single 55time per 56.Nm du 57execution. 58.Sh SEE ALSO 59.Xr df 1 , 60.Xr quot 8 61.Sh HISTORY 62A 63.Nm 64command appeared in 65.At v6 . 66