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POSIX
512 -k 1024 -P file FIFO
GNU
file df
POSIX
-k 512 1024
-P `Filesystem N-blocks Used Available Capacity Mounted on' 6 (
N=512-k N=1024)
GNU
-a, --all
0 `ignore' `auto' ()
-h, --human-readable
M 10 2 M 1,048,576
-i, --inodes
inode
-k, --kilobytes
1024 1
-l, --local
-m, --megabytes
(1,048,576 )
-t fstype, --type=fstype
fstype -t --all
-v (System V df )
-x fstype, --exclude-type=fstype
fstype -x --all
-H, --si
M (SI) 2 10 M 1,000,000
-P, --portability
POSIX a), b), c) a) 1 1 20 () b) c) POSIX
-T, --print-type
mount(8)
--block-size=SIZE
SIZE
--no-sync
sync(2) df ( SunOS )
--sync sync(2) ( SunOS ) df ( )
GNU
--help
--version
--
1024 (POSIXLY_CORRECT 512 ) --block-size=SIZE
DF_BLOCK_SIZE, BLOCK_SIZE, POSIXLY_CORRECT.
human-readable si B D `BLOCK_SIZE=1KB' `BLOCK_SIZE=1024'
`BLOCK_SIZE=1KD' `BLOCK_SIZE=1000'
( --human-readable --si )
k : --human-readable 2^10 = 1024 --si 10^3 = 1000
M : 2^20 = 1,048,576 10^6 = 1,000,000
G : 2^30 = 1,073,741,824 10^9 = 1,000,000,000
T : 2^40 = 1,099,511,627,776 10^12 = 1,000,000,000,000
P : 2^50 = 1,125,899,906,842,624 10^15 = 1,000,000,000,000,000
E : 2^60 = 1,152,921,504,606,846,976 10^18 =
1,000,000,000,000,000,000
Z : 2^70 = 1,180,591,620,717,411,303,424 10^21 =
1,000,000,000,000,000,000,000
Y : 2^80 = 1,208,925,819,614,629,174,706,176 10^24 =
1,000,000,000,000,000,000,000,000
DF_BLOCK_SIZE, BLOCK_SIZE, POSIXLY_CORRECT LANG, LC_ALL, LC_CTYPE,
LC_MESSAGES
POSIX 1003.2
mount(8)
fileutils-4.1 df ; aeb@cwi.nl, aw@mail1.bet1.puv.fi, ragnar@ragnar-
hojland.com bug-fileutils@gnu.org