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df

(1)

report file system space usage

User commands18 optionscoreutils 9.7-3
df [OPTION]... [FILE]...

Options

18
-a--all

include pseudo, duplicate, inaccessible file systems

-B--block-sizeSIZE

scale sizes by SIZE before printing them; e.g., '-BM' prints sizes in units of 1,048,576 bytes; see SIZE format below

-h--human-readable

print sizes in powers of 1024 (e.g., 1023M)

-H--si

print sizes in powers of 1000 (e.g., 1.1G)

-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)

--outputFIELD_LIST

use the output format defined by FIELD_LIST, or print all fields if FIELD_LIST is omitted

-P--portability

use the POSIX output format

--sync

invoke sync before getting usage info

--total

elide all entries insignificant to available space, and produce a grand total

-t--typeTYPE

limit listing to file systems of type TYPE

-T--print-type

print file system type

-x--exclude-typeTYPE

limit listing to file systems not of type TYPE

-v

(ignored)

--help

display this help and exit

--version

output version information and exit

DESCRIPTION

This manual page documents the GNU version of df. df displays the amount of 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. 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 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. This version of df cannot show the space available on unmounted file systems, because on most kinds of systems doing so requires non-portable intimate knowledge of file system structures.

AUTHOR

Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.

REPORTING BUGS

GNU coreutils online help: https://www.gnu.org/software/coreutils/
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SEE ALSO

Full documentation https://www.gnu.org/software/coreutils/df
or available locally via: info '(coreutils) df invocation'

Packaged by Debian (9.7-3)
Copyright © 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later https://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.