DF (1)

df [OPTION]... [FILE]...

DESCRIPTION

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.

OPTIONS

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

REPORTING BUGS

Report bugs to <bug-fileutils@gnu.org>.

SEE ALSO

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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