df/df.1

   1 .\"     $NetBSD: df.1,v 1.14 1997/10/20 08:51:31 enami Exp $
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  34 .\"     @(#)df.1        8.2 (Berkeley) 1/13/92
  35 .\"
  36 .Dd January 13, 1994
  37 .Dt DF 1
  38 .Os BSD 4
  39 .Sh NAME
  40 .Nm df
  41 .Nd display free disk space
  42 .Sh SYNOPSIS
  43 .Nm
  44 .Op Fl ikln
  45 .Op Fl t Ar type
  46 .Op Ar file | Ar file_system ...
  47 .Sh DESCRIPTION
  48 .Nm
  49 displays statistics about the amount of free disk space on the specified
  50 .Ar file_system
  51 or on the file system of which
  52 .Ar file
  53 is a part.
  54 Values are displayed in 512-byte per block block counts.
  55 If neither a file or a
  56 .Ar file_system
  57 operand is specified,
  58 statistics for all mounted file systems are displayed
  59 (subject to the
  60 .Fl l
  61 and
  62 .Fl t
  63 options below).
  64 .Pp
  65 The following options are available:
  66 .Bl -tag -width Ds
  67 .It Fl i
  68 Include statistics on the number of free inodes.
  69 .It Fl k
  70 By default, all sizes are reported in 512-byte block counts.
  71 The
  72 .Fl k
  73 option causes the numbers to be reported in kilobyte counts.
  74 .It Fl l
  75 Display statistics only about mounted file systems with the MNT_LOCAL
  76 flag set.  If a non-local file system is given as an argument, a
  77 warning is issued and no information is given on that file system.
  78 .It Fl n
  79 Print out the previously obtained statistics from the file systems.
  80 This option should be used if it is possible that one or more
  81 file systems are in a state such that they will not be able to provide
  82 statistics without a long delay.
  83 When this option is specified,
  84 .Nm
  85 will not request new statistics from the file systems, but will respond
  86 with the possibly stale statistics that were previously obtained.
  87 .It Fl t Ar type
  88 Is used to indicate the actions should only be taken on
  89 filesystems of the specified type.
  90 More than one type may be specified in a comma separated list.
  91 The list of filesystem types can be prefixed with
  92 .Dq no
  93 to specify the filesystem types for which action should
  94 .Em not
  95 be taken.  If a file system is given on the command line that is not of
  96 the specified type, a warning is issued and no information is given on
  97 that file system.
  98 .El
  99 .Sh ENVIRONMENT VARIABLES
 100 .Bl -tag -width BLOCKSIZE
 101 .It Ev BLOCKSIZE
 102 If the environment variable
 103 .Ev BLOCKSIZE
 104 is set, and the
 105 .Fl k
 106 option is not specified, the block counts will be displayed in units of that
 107 size block.
 108 .El
 109 .Sh SEE ALSO
 110 .Xr quota 1 ,
 111 .Xr statfs 2 ,
 112 .Xr fstatfs 2 ,
 113 .Xr getfsstat 2 ,
 114 .Xr getmntinfo 3 ,
 115 .Xr fstab 5 ,
 116 .Xr mount 8 ,
 117 .Xr quot 8
 118 .Sh HISTORY
 119 A
 120 .Nm
 121 utility appeared in
 122 .At v6 .