df(1M)df(1M)NAMEdf - report number of free file system disk blocks
SYNOPSIS
FStype] specific_options] [special|directory]...
DESCRIPTION
The command displays the number of free 512-byte blocks and free inodes
available for file systems by examining the counts kept in the
superblock or superblocks. If a special or a directory is not speci‐
fied, the free space on all mounted file systems is displayed. If the
arguments to are path names, reports on the file systems containing the
named files. If the argument to is a special of an unmounted file sys‐
tem, the free space in the unmounted file system is displayed.
Options
recognizes the following options:
Report only the number of kilobytes (KB) free.
Report the number of files free.
Report only the actual count of the blocks in the free list
(free inodes are not reported).
Report only on the
FStype file system type (see fstyp(1M)).
Report the entire structure described in
statvfs(2).
Report the total number of inodes,
the number of free inodes, number of used inodes,
and the percentage of inodes in use.
Report the allocation in kilobytes (KB).
Report on local file systems only.
Report the file system name.
If used with no other options, display a list of
mounted file system types.
Specify options specific to each file system type.
specific_options is a comma-separated list of
suboptions intended for a specific FStype module
of the command. See the file-system-specific
manual entries for further details.
Report the name of the file system, the size of the file system,
the number of blocks used, the number of blocks
free, the percentage of blocks used and the
directory below which the file system hierarchy
appears.
Do not sync the file system data on the disk before
reporting the usage. Note that the data reported
by may not be up to date.
Report the total allocated block figures and the number of free
blocks.
Report the percentage of blocks used,
the number of blocks used, and the number of
blocks free. This option cannot be used with
other options.
Echo the completed command line, but perform no other action.
The command line is generated by incorporating
the user-specified options and other information
derived from This option allows the user to ver‐
ify the command line.
EXTERNAL INFLUENCES
Environment Variables
determines the language in which messages are displayed.
If is not specified in the environment or is set to the empty string,
the value of is used as a default for each unspecified or empty vari‐
able. If is not specified or is set to the empty string, a default of
"C" (see lang(5)) is used instead of
If any internationalization variable contains an invalid setting,
behaves as if all internationalization variables are set to "C". See
environ(5).
International Code Set Support
Single-byte and multi-byte character code sets are supported.
EXAMPLES
Report the number of free disk blocks for all mounted file systems:
Report the number of free disk blocks for all mounted HFS file systems:
Report the number of free files for all mounted NFS file systems:
Report the total allocated block figures and the number of free blocks,
for all mounted file systems:
Report the total allocated block figures and the number of free blocks,
for the file system mounted as
FILES
File system devices
Static information about the file systems
Mounted file system table
SEE ALSOdu(1), df_hfs(1M), df_vxfs(1M), fsck(1M), fstyp(1M), statvfs(2),
fstab(4), mnttab(4).
STANDARDS CONFORMANCEdf(1M)