df(1M) df(1M)
NAME
df (generic) - report number of free disk blocks and files
SYNOPSIS
df [-F FSType] [-begklntV] [current_options] [-o specific_options]
[directory | special | resource...]
DESCRIPTION
df prints the allocation portions of the generic superblock for
mounted or unmounted file systems, directories or mounted resources.
directory represents a valid directory name. If directory is
specified df reports on the device that contains the directory.
special represents a special device (e.g., /dev/dsk/c8d1s8).
resource is an RFS/NFS resource name. If arguments to df are
pathnames, df produces a report on the file system containing the
named file.
current_options are options supported by the s5-specific module of
df. Other FSTypes do not necessarily support these options.
specific_options indicate suboptions specified in a comma-separated
list of suboptions and/or keyword-attribute pairs for interpretation
by the FSType-specific module of the command.
The options are:
-F Specify the FSType on which to operate. This is only
needed if the file system is unmounted. The FSType should
be specified here or be determinable from /etc/vfstab by
matching the mount_point, special, or resource with an
entry in the table.
-b Print only the number of kilobytes free.
-e Print only the number of files free.
-g Print the entire statvfs structure. Used only for mounted
file systems. Can not be used with current_options or with
the -o option. This option will override the -b, -e, -k,
-n, and -t options.
-k Print allocation in kilobytes. This option should be
invoked by itself because its output format is different
from that of the other options.
-l Report on local file systems only. Used only for mounted
file systems. Can not be used with current_options or with
the -o option.
-n Print only the FSType name. Invoked with no arguments this
option prints a list of mounted file system types. Used
only for mounted file systems. Can not be used with
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df(1M) df(1M)
current_options or with the -o option.
-t Print full listings with totals. This option will override
the -b, -e, and -n options.
-V Echo the complete command line, but do not execute the
command. The command line is generated by using the
options and arguments provided by the user and adding to
them information derived from /etc/mnttab or /etc/vfstab.
This option should be used to verify and validate the
command line.
-o Specify FSType-specific options.
If no arguments or options are specified, the free space on all local
and remotely mounted file systems is printed.
NOTES
The -F option is intended for use with unmounted file systems.
This command may not be supported for all FSTypes.
FILES
/dev/dsk/*
/etc/mnttab mount table
/etc/vfstab list of default parameters for each file system
SEE ALSO
mount(1M), mnttab(4), vfstab(4).
statvfs(2) in the Programmer's Reference Manual.
Manual pages for the FSType-specific modules of df.
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