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df - report filesystem 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 filesystem containing each file
name argument. If no file name is given, the space available on all currently
mounted filesystems 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 filesystem, df shows the space available on that
filesystem rather than on the filesystem containing the device node (which
is always the root filesystem). This version of df cannot show the space
available on unmounted filesystems, because on most kinds of systems doing
so requires very nonportable intimate knowledge of filesystem structures.
Show information about the filesystem on which each FILE resides,
or all filesystems by default.
- -a, --all
- include filesystems having 0 blocks
- --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, --kilobytes
- like --block-size=1024
- -l, --local
- limit listing to local filesystems
- -m, --megabytes
- like --block-size=1048576
- --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 filesystems of type TYPE
- -T, --print-type
- print filesystem type
- -x, --exclude-type=TYPE
- limit listing to
filesystems not of type TYPE
- -v
- (ignored)
- --help
- display this help and exit
- --version
- output version information and exit
Report bugs to
<bug-fileutils@gnu.org>.
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 df
should give you access to the complete
manual.
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