DF(C)                                UNIX System V



     Name
          df - report number of free disk blocks


     Syntax
          df [ -t ] [ -f ] [ -v -i ] [ filesystems ]


     Description
          df prints out the number of  free  blocks  and  free  inodes
          available  for  on-line  filesystems by examining the counts
          kept in the super-blocks; filesystems may  be  specified  by
          device  name (e.g., /dev/root).  If the filesystems argument
          is unspecified,  the  free  space  on  all  of  the  mounted
          filesystems  is  sent  to  the standard output.  The list of
          mounted filesystems is given in /etc/mnttab.

          Options include:

          -t   Causes total allocated block figures to be reported  as
               well as number of free blocks.

          -f   Reports only an actual count of the blocks in the  free
               list (free inodes are not reported).  With this option,
               df reports on raw devices.

          -v   Reports the percent of  blocks  used  as  well  as  the
               number of blocks used and free.

          -i   Reports the percent of  inodes  used  as  well  as  the
               number of inodes used and free.  Use the -i option with
               the -v option to display counts of  blocks  and  inodes
               free  as  well  as  the percentage of inodes and blocks
               used.

          The -v and -i option can not be used with other df options.


     Files
          /dev/*
          /etc/mnttab


     See Also
          mount(ADM), fsck(ADM), mnttab(F)


     Notes
          See Notes under mount(ADM).

          This utility reports sizes in  512  byte  blocks.   df  will
          report  2 blocks less free space, rather than 1 block, since
          the file uses one system block of 1024 bytes.

          The directory /etc/fscmd.d/TYPE contains programs  for  each
          filesystem type, df invokes the appropriate binary.


     Authorization
          The behavior of this utility is affected  by  assignment  of
          the  queryspace authorization, which is usually reserved for
          system administrators.   Refer  to  the  ``Using  a  Trusted
          System'' chapter of the User's Guide for more details.


     Standards Conformance
          df is conformant with:
          AT&T SVID Issue 2, Select Code 307-127;
          and The X/Open Portability Guide II of January 1987.


     (printed 2/15/90)                                      DF(C)