1.\" Copyright (c) 1990 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" %sccs.include.redist.man% 5.\" 6.\" @(#)du.1 6.6 (Berkeley) 06/30/90 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 19.Nm Du 20utility displays the block usage of files in the current directory 21or for the entire tree of a given pathname. 22.Pp 23The options are as follows: 24.Tp Fl a 25Generate an entry for each file. 26.Tp Fl k 27By default, 28.Nm du 29displays the number of blocks as returned by the 30.Xr stat 2 31system call, i.e. 512-byte blocks. 32If the 33.Fl k 34flag is specified, the number displayed is the number of 1024-byte 35blocks with partial blocks rounded up. 36.Tp Fl s 37Generate only the grand total. 38If neither 39.Fl a 40or 41.Fl s 42are specified, an entry is generated for each directory only. 43.Tp Fl x 44Don't traverse any mount points. 45.Tp 46.Pp 47Files having multiple hard links are counted 48(and displayed) a single time per 49.Nm du 50execution. 51.Sh SEE ALSO 52.Xr df 1 , 53.Xr quot 8 54.Sh HISTORY 55A 56.Nm du 57command appeared in Version 6 AT&T Unix. 58