Name
df
Synopsis
df [options
] [name
]
Report the amount of free disk space available on all mounted filesystems or on the given name. (df cannot report on unmounted filesystems.) Disk space is shown in 1KB blocks (default) or 512-byte blocks (if the environment variable POSIXLY_CORRECT is set). name can be a device name (e.g., /dev/hd*), the directory name of a mounting point (e.g., /usr), or a directory name (in which case df reports on the entire filesystem in which that directory is mounted).
Options
- -a, --all
Include empty filesystems (those with 0 blocks).
- --block-size= n
Show space as n-byte blocks.
- -h, --human-readable
Print sizes in a format friendly to human readers (e.g., 1.9G instead of 1967156).
- -H, --si
Like -h, but show as power of 1000 rather than 1024.
- -i, --inodes
Report free, used, and percent-used inodes.
- -k, --kilobytes
Print sizes in kilobytes.
- -l, --local
Show local filesystems only.
- -m, --megabytes
Print sizes in megabytes.
- --no-sync
Show results without invoking sync first (i.e., without flushing the buffers). This is the default.
- -P, --portability
Use POSIX output format (i.e., print information about each filesystem on exactly one line).
- --sync
Invoke sync (flush buffers) before getting and showing sizes.
- -t type, --type= type
Show only type filesystems.
- -T, --print-type
Print the type of each filesystem in addition to the sizes.
- -x type, --exclude-type= type
Show only filesystems that are not of type type.
- --help
Print help message and then exit.
- --version ...
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