DF("1") manual page
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df - report file system disk space usage
df [OPTION]... [FILE]...
This manual page documents the GNU version of df. df displays
the amount of disk space available on the file system containing each file
name argument. If no file name is given, the space available on all currently
mounted file systems is shown. Disk space is shown in 1K blocks by default,
unless the environment variable POSIXLY_CORRECT is set, in which case 512-byte
blocks are used.
If an argument is the absolute file name of a disk device
node containing a mounted file system, df shows the space available on
that file system rather than on the file system containing the device node
(which is always the root file system). This version of df cannot show
the space available on unmounted file systems, because on most kinds of
systems doing so requires very nonportable intimate knowledge of file system
structures.
Show information about the file system on which each
FILE resides, or all file systems by default.
Mandatory arguments to long
options are mandatory for short options too.
- -a, --all
- include dummy file systems
- -B, --block-size=SIZE
- use SIZE-byte blocks
- -h, --human-readable
- print sizes in human
readable format (e.g., 1K 234M 2G)
- -H, --si
- likewise, but use powers of 1000
not 1024
- -i, --inodes
- list inode information instead of block usage
- -k
- like
--block-size=1K
- -l, --local
- limit listing to local file systems
- --no-sync
- do not
invoke sync before getting usage info (default)
- -P, --portability
- use the
POSIX output format
- --sync
- invoke sync before getting usage info
- -t, --type=TYPE
- limit listing to file systems of type TYPE
- -T, --print-type
- print file system
type
- -x, --exclude-type=TYPE
- limit listing to file systems not of type TYPE
- -v
- (ignored)
- --help
- display this help and exit
- --version
- output version information
and exit
SIZE may be (or may be an integer optionally followed by) one
of following: kB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for
G, T, P, E, Z, Y.
Written by Torbj?rn Granlund, David MacKenzie, and
Paul Eggert.
Report bugs to <bug-coreutils@gnu.org>.
Copyright
© 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or
later <http://gnu.org/licenses/gpl.html
>
This is free software: you are free to change and redistribute it. There
is NO WARRANTY, to the extent permitted by law.
The full documentation
for df is maintained as a Texinfo manual. If the info and df programs are
properly installed at your site, the command
- info coreutils ’df invocation’
should give you access to the complete manual.
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