1 .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.35.
2 .TH DF "1" "March 2012" "GNU coreutils 8.16" "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
41 scale sizes by SIZE before printing them. E.g.,
42 \&'\-BM' prints sizes in units of 1,048,576 bytes.
43 See SIZE format below.
48 \fB\-h\fR, \fB\-\-human\-readable\fR
49 print sizes in human readable format (e.g., 1K 234M 2G)
51 \fB\-H\fR, \fB\-\-si\fR
52 likewise, but use powers of 1000 not 1024
54 \fB\-i\fR, \fB\-\-inodes\fR
55 list inode information instead of block usage
58 like \fB\-\-block\-size\fR=\fI1K\fR
60 \fB\-l\fR, \fB\-\-local\fR
61 limit listing to local file systems
64 do not invoke sync before getting usage info (default)
66 \fB\-P\fR, \fB\-\-portability\fR
67 use the POSIX output format
70 invoke sync before getting usage info
72 \fB\-t\fR, \fB\-\-type\fR=\fITYPE\fR
73 limit listing to file systems of type TYPE
75 \fB\-T\fR, \fB\-\-print\-type\fR
76 print file system type
78 \fB\-x\fR, \fB\-\-exclude\-type\fR=\fITYPE\fR
79 limit listing to file systems not of type TYPE
85 display this help and exit
88 output version information and exit
90 Display values are in units of the first available SIZE from \fB\-\-block\-size\fR,
91 and the DF_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environment variables.
92 Otherwise, units default to 1024 bytes (or 512 if POSIXLY_CORRECT is set).
94 SIZE is an integer and optional unit (example: 10M is 10*1024*1024). Units
95 are K, M, G, T, P, E, Z, Y (powers of 1024) or KB, MB, ... (powers of 1000).
97 Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.
99 Report df bugs to bug\-coreutils@gnu.org
101 GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
103 General help using GNU software: <http://www.gnu.org/gethelp/>
105 Report df translation bugs to <http://translationproject.org/team/>
107 Copyright \(co 2012 Free Software Foundation, Inc.
108 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
110 This is free software: you are free to change and redistribute it.
111 There is NO WARRANTY, to the extent permitted by law.
113 The full documentation for
115 is maintained as a Texinfo manual. If the
119 programs are properly installed at your site, the command
121 .B info coreutils \(aqdf invocation\(aq
123 should give you access to the complete manual.