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. 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
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
include pseudo, duplicate, inaccessible file systems
scale sizes by SIZE before printing them; e.g., '-BM' prints
sizes in units of 1,048,576 bytes; see SIZE format below
print sizes in powers of 1024 (e.g., 1023M)
print sizes in powers of 1000 (e.g., 1.1G)
list inode information instead of block usage
-k like --block-size=1K-l, --local
limit listing to local file systems
do not invoke sync before getting usage info (default)
use the output format defined by FIELD_LIST, or print all
fields if FIELD_LIST is omitted.
use the POSIX output format
--sync invoke sync before getting usage info
elide all entries insignificant to available space, and
produce a grand total
limit listing to file systems of type TYPE
print file system type
limit listing to file systems not of type TYPE
--help display this help and exit
output version information and exit
Display values are in units of the first available SIZE from
--block-size, and the DF_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE
environment variables. Otherwise, units default to 1024 bytes (or
512 if POSIXLY_CORRECT is set).
The SIZE argument is an integer and optional unit (example: 10K is
10*1024). Units are K,M,G,T,P,E,Z,Y (powers of 1024) or KB,MB,...
(powers of 1000).
FIELD_LIST is a comma-separated list of columns to be included.
Valid field names are: 'source', 'fstype', 'itotal', 'iused',
'iavail', 'ipcent', 'size', 'used', 'avail', 'pcent', 'file' and
'target' (see info page).
This page is part of the coreutils (basic file, shell and text
manipulation utilities) project. Information about the project can
be found at ⟨http://www.gnu.org/software/coreutils/⟩. If you have a
bug report for this manual page, see
⟨http://www.gnu.org/software/coreutils/⟩. This page was obtained from
the tarball coreutils-8.27.tar.xz fetched from
⟨http://www.gnutls.org/download.html⟩ on 2017-03-13. If you discover
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you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
GNU coreutils 8.27 March 2017 DF(1)