1.\" Copyright (c) 1989, 1990, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)df.1 8.2 (Berkeley) 1/13/94 33.\" 34.Dd January 13, 1994 35.Dt DF 1 36.Os BSD 4 37.Sh NAME 38.Nm df 39.Nd display free disk space 40.Sh SYNOPSIS 41.Nm df 42.Op Fl in 43.Op Fl t Ar type 44.Op Ar file | Ar filesystem ... 45.Sh DESCRIPTION 46.Nm Df 47displays statistics about the amount of free disk space on the specified 48.Ar filesystem 49or on the filesystem of which 50.Ar file 51is a part. 52Values are displayed in 512-byte per block block counts. 53If neither a file or a filesystem operand is specified, 54statistics for all mounted filesystems are displayed 55(subject to the 56.Fl t 57option below). 58.Pp 59The following options are available: 60.Bl -tag -width Ds 61.It Fl i 62Include statistics on the number of free inodes. 63.It Fl n 64Print out the previously obtained statistics from the filesystems. 65This option should be used if it is possible that one or more 66filesystems are in a state such that they will not be able to provide 67statistics without a long delay. 68When this option is specified, 69.Nm df 70will not request new statistics from the filesystems, but will respond 71with the possibly stale statistics that were previously obtained. 72.It Fl t 73Only print out statistics for filesystems of the specified types. 74The recognized types are: 75ufs, nfs, mfs, lfs, msdos, fdesc, portal, kernfs, procfs, afs and isofs. 76along with the aggregates: 77all (the default), 78local (ufs, mfs, lfs, msdos, isofs), 79and misc (fdesc, portal, kernfs, procfs). 80The string ``no'' may be prepending to a type to get its complement 81(e.g. ``nonfs'' to get non-NFS filesystems). The first 82.Fl t 83option overrides the default, additional such options will add to 84(or subtract from) the current set of types; e.g. either 85``df -t ufs -t lfs'' 86or 87``df -t local -t nomfs'' 88will display statistics for UFS and LFS filesystems. 89.El 90.Sh ENVIRONMENTAL VARIABLES 91.Bl -tag -width BLOCKSIZE 92.It Ev BLOCKSIZE 93If the environmental variable 94.Ev BLOCKSIZE 95is set, the block counts will be displayed in units of that size block. 96.El 97.Sh BUGS 98The 99.Fl n 100and 101.Fl t 102flags are ignored if a file or filesystem is specified. 103.Sh SEE ALSO 104.Xr quota 1 , 105.Xr statfs 2 , 106.Xr fstatfs 2 , 107.Xr getfsstat 2 , 108.Xr getmntinfo 3 , 109.Xr fstab 5 , 110.Xr mount 8 , 111.Xr quot 8 112.Sh HISTORY 113A 114.Nm df 115command appeared in 116.At v6 . 117