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- DF(1L) DF(1L)
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- N✓NA✓AM✓ME✓E
- df - summarize free disk space
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- S✓SY✓YN✓NO✓OP✓PS✓SI✓IS✓S
- d✓df✓f [-aikPv] [-t fstype] [-x fstype] [--all] [--inodes]
- [--type=fstype] [--exclude-type=fstype] [--kilobytes]
- [--portability] [--help] [--version] [path...]
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- D✓DE✓ES✓SC✓CR✓RI✓IP✓PT✓TI✓IO✓ON✓N
- This manual page documents the GNU version of d✓df✓f. d✓df✓f dis-
- plays the amount of disk space available on the filesystem
- containing each argument pathname. If no pathnames are
- given, the space available on all currently mounted
- filesystems is shown. Disk space is shown in 1K blocks by
- default, unless the environment variable POSIXLY_CORRECT
- is set, in which case 512-byte blocks are used.
-
- If an argument is the full pathname of a disk device node
- containing a mounted filesystem, d✓df✓f shows the space avail-
- able on that filesystem rather than on the filesystem con-
- taining the device node (which is always the root filesys-
- tem). This version of d✓df✓f cannot show the space available
- on unmounted filesystems, because on most kinds of systems
- doing so requires very nonportable intimate knowledge of
- filesystem structures.
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- O✓OP✓PT✓TI✓IO✓ON✓NS✓S
- _✓-_✓a_✓, _✓-_✓-_✓a_✓l_✓l
- 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.
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- _✓-_✓i_✓, _✓-_✓-_✓i_✓n_✓o_✓d_✓e_✓s
- List inode usage information instead of block
- usage. An inode (short for ``index node'') is a
- special kind of disk block that contains informa-
- tion about a file, such as its owner, permissions,
- timestamps, and location on the disk.
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- _✓-_✓k_✓, _✓-_✓-_✓k_✓i_✓l_✓o_✓b_✓y_✓t_✓e_✓s
- Print sizes in 1K blocks instead of 512-byte
- blocks. This overrides the environment variable
- POSIXLY_CORRECT.
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- _✓-_✓P_✓, _✓-_✓-_✓p_✓o_✓r_✓t_✓a_✓b_✓i_✓l_✓i_✓t_✓y
- 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
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- FSF GNU File Utilities 1
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- DF(1L) DF(1L)
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- is more than 20 characters long (as for some net-
- work mounts), the columns are misaligned.
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- _✓-_✓t_✓, _✓-_✓-_✓t_✓y_✓p_✓e_✓=_✓f_✓s_✓t_✓y_✓p_✓e
- Limit the listing to filesystems of type _✓f_✓s_✓t_✓y_✓p_✓e.
- Multiple filesystem types can be shown by giving
- multiple _✓-_✓t options. By default, all filesystem
- types are listed.
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- _✓-_✓x_✓, _✓-_✓-_✓e_✓x_✓c_✓l_✓u_✓d_✓e_✓-_✓t_✓y_✓p_✓e_✓=_✓f_✓s_✓t_✓y_✓p_✓e
- Limit the listing to filesystems not of type
- _✓f_✓s_✓t_✓y_✓p_✓e. Multiple filesystem types can be elimi-
- nated by giving multiple _✓-_✓x options. By default,
- all filesystem types are listed.
-
- _✓-_✓v Ignored; for compatibility with System V versions
- of d✓df✓f.
-
- _✓-_✓-_✓h_✓e_✓l_✓p Print a usage message on standard output and exit
- successfully.
-
- _✓-_✓-_✓v_✓e_✓r_✓s_✓i_✓o_✓n
- Print version information on standard output then
- exit successfully.
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- FSF GNU File Utilities 2
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