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df(1B)		   SunOS/BSD Compatibility Package Commands		df(1B)

NAME
       df - display status of disk space on file systems

SYNOPSIS
       /usr/ucb/df [-a] [-i] [-t type] [filesystem...]
	    [filename...]

DESCRIPTION
       The  df utility displays the amount of disk space occupied by currently
       mounted file systems, the amount of used and available space,  and  how
       much of the file system's total capacity has been used.

       If  arguments  to  df  are path names, df produces a report on the file
       system containing the named file. Thus `df   .'	shows  the  amount  of
       space on the file system containing the current directory.

OPTIONS
       The following options are supported:

       -a	  Report  on  all filesystems including the uninteresting ones
		  which have zero total blocks (that is, auto-mounter).

       -i	  Report the number of used and free inodes. Print ` * ' if no
		  information is available.

       -t type	  Report  on  filesystems of a given type (for example, nfs or
		  ufs).

EXAMPLES
       Example 1 Using df

       A sample of output for df looks like:

	 example% df
	 Filesystem   kbytes  used  avail  capacity  Mounted on
	 sparky:/	7445  4714  1986     70%     /
	 sparky:/usr   42277 35291  2758     93%     /usr

       Note that used+avail is less than the amount of space in the file  sys‐
       tem  (kbytes);  this  is	 because the system reserves a fraction of the
       space in the file system to allow its file system  allocation  routines
       to  work	 well. The amount reserved is typically about 10%; this can be
       adjusted using tunefs (see tunefs(1M)). When all the space  on  a  file
       system except for this reserve is in use, only the super-user can allo‐
       cate new files and data blocks to existing files. When a file system is
       overallocated  in  this way, df can report that the file system is more
       than 100% utilized.

FILES
       /etc/mnttab    List of file systems currently mounted

       /etc/vfstab    List of default parameters for each file system

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       ┌─────────────────────────────┬─────────────────────────────┐
       │      ATTRIBUTE TYPE	     │	    ATTRIBUTE VALUE	   │
       ├─────────────────────────────┼─────────────────────────────┤
       │Availability		     │compatibility/ucb		   │
       └─────────────────────────────┴─────────────────────────────┘

SEE ALSO
       du(1), quot(1M), tunefs(1M), mnttab(4), attributes(5)

SunOS 5.11			  14 Sep 1992				df(1B)
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