1 .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.35.
2 .TH DF "1" "March 2007" "GNU coreutils 6.9" "User Commands"
4 df \- report file system disk space usage
7 [\fIOPTION\fR]... [\fIFILE\fR]...
10 documents the GNU version of
13 displays the amount of disk space available on the file system
14 containing each file name argument. If no file name is given, the
15 space available on all currently mounted file systems is shown. Disk
16 space is shown in 1K blocks by default, unless the environment
17 variable POSIXLY_CORRECT is set, in which case 512-byte blocks are
20 If an argument is the absolute file name of a disk device node containing a
23 shows the space available on that file system rather than on the
24 file system containing the device node (which is always the root
25 file system). This version of
27 cannot show the space available on unmounted file systems, because on
28 most kinds of systems doing so requires very nonportable intimate
29 knowledge of file system structures.
32 Show information about the file system on which each FILE resides,
33 or all file systems by default.
35 Mandatory arguments to long options are mandatory for short options too.
37 \fB\-a\fR, \fB\-\-all\fR
38 include dummy file systems
40 \fB\-B\fR, \fB\-\-block\-size\fR=\fISIZE\fR
43 \fB\-h\fR, \fB\-\-human\-readable\fR
44 print sizes in human readable format (e.g., 1K 234M 2G)
46 \fB\-H\fR, \fB\-\-si\fR
47 likewise, but use powers of 1000 not 1024
49 \fB\-i\fR, \fB\-\-inodes\fR
50 list inode information instead of block usage
53 like \fB\-\-block\-size\fR=\fI1K\fR
55 \fB\-l\fR, \fB\-\-local\fR
56 limit listing to local file systems
59 do not invoke sync before getting usage info (default)
61 \fB\-P\fR, \fB\-\-portability\fR
62 use the POSIX output format
65 invoke sync before getting usage info
67 \fB\-t\fR, \fB\-\-type\fR=\fITYPE\fR
68 limit listing to file systems of type TYPE
70 \fB\-T\fR, \fB\-\-print\-type\fR
71 print file system type
73 \fB\-x\fR, \fB\-\-exclude\-type\fR=\fITYPE\fR
74 limit listing to file systems not of type TYPE
80 display this help and exit
83 output version information and exit
85 SIZE may be (or may be an integer optionally followed by) one of following:
86 kB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y.
88 Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.
90 Report bugs to <bug\-coreutils@gnu.org>.
92 Copyright \(co 2007 Free Software Foundation, Inc.
94 This is free software. You may redistribute copies of it under the terms of
95 the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
96 There is NO WARRANTY, to the extent permitted by law.
98 The full documentation for
100 is maintained as a Texinfo manual. If the
104 programs are properly installed at your site, the command
108 should give you access to the complete manual.