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 6.9 (Berkeley) 04/24/91 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 aksx 17.Op Ar pathname ... 18.Sh DESCRIPTION 19The 20.Nm du 21utility displays the file system block usage for each file argument 22or for each directory in the file hierarchy rooted in each directory 23argument. 24By default, the block usage of the hierarchy rooted in the current 25directory is displayed. 26.Pp 27The options are as follows: 28.Bl -tag -width Ds 29.It Fl a 30Generate an entry for each file. 31.It Fl k 32By default, 33.Nm du 34displays the number of blocks as returned by the 35.Xr stat 2 36system call, i.e. 512-byte blocks. 37If the 38.Fl k 39flag is specified, the number displayed is the number of 1024-byte 40blocks with partial blocks rounded up. 41.It Fl s 42Generate only the grand total. 43.It Fl x 44Don't traverse any mount points. 45.El 46.Pp 47Files having multiple hard links are counted (and displayed) a single 48time per 49.Nm du 50execution. 51.Sh SEE ALSO 52.Xr df 1 , 53.Xr quot 8 54.Sh HISTORY 55A 56.Nm 57command appeared in 58.At v6 . 59