DF

NAME

SYNOPSIS

DESCRIPTION

If an argument is the full pathname of a disk device node containing a mounted filesystem, df shows the space available on that filesystem rather than on the filesystem containing the device node (which is always the root filesystem). This version of df can not show the space available on unmounted filesystems, because on most kinds of systems doing so requires very nonportable intimate knowledge of filesystem structures.  

OPTIONS

-a, --all

Include in the listing filesystems that have 0 blocks, which are omitted by default. Such filesystems are typically special-purpose pseudo-filesystems, such as automounter entries. On some systems, filesystems of type ``ignore'' or ``auto'' are also omitted by default and included in the listing by this option.

-i, --inodes

List inode usage information instead of block usage. An inode (short for ``index node'') is a special kind of disk block that contains information about a file, such as its owner, permissions, timestamps, and location on the disk.

-k, --kilobytes

Print sizes in 1K blocks instead of 512-byte blocks. This overrides the environment variable POSIXLY_CORRECT.

-P, --portability

Use the POSIX output format. This is like the default format except that the information about each filesystem is always printed on exactly one line; a mount device is never put on a line by itself. This means that if the mount device name is more than 20 characters long (as for some network mounts), the columns are misaligned.

-t, --type fstype

Limit the listing to filesystems of type fstype. Multiple filesystem types can be shown by giving multiple -t options. By default, all filesystem types are listed.

-v

Ignored; for compatibility with System V versions of df.

The long-named options can be introduced with `+' as well as `--', for compatibility with previous releases. Eventually support for `+' will be removed, because it is incompatible with the POSIX.2 standard.

Index

NAME

SYNOPSIS

DESCRIPTION

OPTIONS