Usage
The Single UNIX Specification specifications for df are:
df- -k
- Use 1024-byte units, instead of the default 512-byte units, when writing space figures.
- -P
- Use a standard, portable, output format
- -t
- If XSI compliant, show allocated space as well
- -h
- Display in KB, MB, or GB
- file
- Write the amount of free space of the file system containing the specified file
Most Unix and Unix-like operating systems add extra options. The BSD and GNU coreutils versions include -h, where free space is listed in human readable format, adding units with the appropriate SI prefix (e.g. 10MB), -i, listing inode usage, and -l, restricting display to only local filesystems. GNU df includes -T as well, listing filesystem type information, but the GNU df shows the sizes in 1K blocks by default.
Read more about this topic: Df (Unix)
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