df − +report file system space usage
+ +df +[OPTION]... [FILE]...
+ +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 very nonportable intimate +knowledge of file system structures.
+ +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
+too.
+−a, −−all
include pseudo, duplicate, +inaccessible file systems
+ +−B, +−−block−size=SIZE
+ +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)
+ + +−−output[=FIELD_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, +−−type=TYPE
+ +limit listing to file systems +of type TYPE
+ +−T, +−−print−type
+ +print file system type
+ +−x, +−−exclude−type=TYPE
+ +limit listing to file systems +not of type TYPE
+ +| + |
+
+
+ −v |
++ |
+
+
+ (ignored) |
++ |
| + |
+
+
+ −−help |
++ |
+
+
+ display this help and exit |
++ |
−−version
+ +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). Binary prefixes can be used, +too: KiB=K, MiB=M, and so on.
+ +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).
+ +Written by +Torbjorn Granlund, David MacKenzie, and Paul Eggert.
+ +GNU coreutils
+online help: <https://www.gnu.org/software/coreutils/>
+
+Report any translation bugs to
+<https://translationproject.org/team/>
Copyright
+© 2022 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.
Full
+documentation
+<https://www.gnu.org/software/coreutils/df>
+or available locally via: info '(coreutils) df
+invocation'