Df, du of Linux commands

Df Command help information

Usage: df [Option]... [file]...
Displays information about each file system. By default, all file systems are displayed.

Long Options are required when short options are used.
Option

-A, -- all includes a file system with a size of 0 blocks.
-B, -- block-size = The size block is measured in specified bytes.
-H, -- human-readable print the file system size in an easy-to-understand format (for example, 1 K, 234 M, 2G)
-H, -- si is similar to-h, but takes the power of 1000 instead of 1024.
-I, -- inodes: displays inode information instead of block usage.
-K is -- block-size = 1 K
-L, -- local only displays the local file system
-- No-sync: do not perform the sync action before getting the used data (default)
-P, -- portability uses POSIX output format
-- Sync before getting the used data
-T, -- type = type: only the specified file system information is printed.
-T, -- print-type indicates the file system type.
-X, -- exclude-type = type: only the specified file system information is printed.
-V this option is not processed
-- Help: displays the help information and leaves
-- Version: displays the version information and leaves.