df(1) - f39

1DF(1)                            User Commands                           DF(1)
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NAME

6       df - report file system space usage
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SYNOPSIS

9       df [OPTION]... [FILE]...
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DESCRIPTION

12       This  manual  page  documents  the  GNU version of df.  df displays the
13       amount of space available on the file system containing each file  name
14       argument.   If  no  file name is given, the space available on all cur‐
15       rently mounted file systems is shown.  Space is shown in 1K  blocks  by
16       default,  unless  the  environment  variable POSIXLY_CORRECT is set, in
17       which case 512-byte blocks are used.
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19       If an argument is the absolute file name of a device node containing  a
20       mounted  file  system, df shows the space available on that file system
21       rather than on the file system containing the device node.   This  ver‐
22       sion  of  df cannot show the space available on unmounted file systems,
23       because on most kinds of systems doing so requires very nonportable in‐
24       timate knowledge of file system structures.
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OPTIONS

27       Show  information  about the file system on which each FILE resides, or
28       all file systems by default.
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30       Mandatory arguments to long options are  mandatory  for  short  options
31       too.
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33       -a, --all
34              include pseudo, duplicate, inaccessible file systems
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36       -B, --block-size=SIZE
37              scale  sizes  by  SIZE  before printing them; e.g., '-BM' prints
38              sizes in units of 1,048,576 bytes; see SIZE format below
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40       --direct
41              show statistics for a file instead of mount point
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43       -h, --human-readable
44              print sizes in powers of 1024 (e.g., 1023M)
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46       -H, --si
47              print sizes in powers of 1000 (e.g., 1.1G)
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49       -i, --inodes
50              list inode information instead of block usage
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52       -k     like --block-size=1K
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54       -l, --local
55              limit listing to local file systems
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57       --no-sync
58              do not invoke sync before getting usage info (default)
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60       --output[=FIELD_LIST]
61              use the output format defined by FIELD_LIST, or print all fields
62              if FIELD_LIST is omitted.
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64       -P, --portability
65              use the POSIX output format
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67       --sync invoke sync before getting usage info
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69       --total
70              elide  all entries insignificant to available space, and produce
71              a grand total
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73       -t, --type=TYPE
74              limit listing to file systems of type TYPE
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76       -T, --print-type
77              print file system type
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79       -x, --exclude-type=TYPE
80              limit listing to file systems not of type TYPE
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82       -v     (ignored)
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84       --help display this help and exit
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86       --version
87              output version information and exit
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89       Display  values  are  in  units  of  the  first  available  SIZE   from
90       --block-size,  and the DF_BLOCK_SIZE, BLOCK_SIZE and BLOCKSIZE environ‐
91       ment variables.  Otherwise, units default to  1024  bytes  (or  512  if
92       POSIXLY_CORRECT is set).
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94       The  SIZE  argument  is  an  integer and optional unit (example: 10K is
95       10*1024).  Units are K,M,G,T,P,E,Z,Y,R,Q (powers of 1024) or  KB,MB,...
96       (powers  of 1000).  Binary prefixes can be used, too: KiB=K, MiB=M, and
97       so on.
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99       FIELD_LIST is a comma-separated list of columns to be included.   Valid
100       field  names are: 'source', 'fstype', 'itotal', 'iused', 'iavail', 'ip‐
101       cent', 'size', 'used', 'avail', 'pcent', 'file' and 'target' (see  info
102       page).
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AUTHOR

105       Written by Torbjorn Granlund, David MacKenzie, and Paul Eggert.
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REPORTING BUGS

108       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
109       Report any translation bugs to <https://translationproject.org/team/>
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COPYRIGHT

112       Copyright  ©  2023  Free Software Foundation, Inc.  License GPLv3+: GNU
113       GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
114       This is free software: you are free  to  change  and  redistribute  it.
115       There is NO WARRANTY, to the extent permitted by law.
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