CLRI(ADM)                                  UNIX System V



     Name
          clri - clears inode


     Syntax
          /etc/clri filesystem i-number ...


     Description
          clri writes zeros on the 64  bytes  occupied  by  the  inode
          numbered  i-number.   Filesystem  must be a special filename
          referring to a device containing a file system.  After  clri
          is executed, any blocks in the affected file will show up as
          ``missing'' if the file system is  checked  with  fsck(ADM).
          Use clri only in emergencies and exercise extreme care.

          Read and write  permission  is  required  on  the  specified
          filesystem device.  The inode becomes allocatable.

          The primary purpose of this routine  is  to  remove  a  file
          which,  for  some reason, does not appear in a directory. If
          you use clri to destroy an inode  which  does  appear  in  a
          directory,  track  down the entry and remove it.  Otherwise,
          when the inode is reallocated to  some  new  file,  the  old
          entry will still point to this file.  At that point removing
          the old entry will destroy the new file.  The new entry will
          again  point  to an unallocated inode, so the whole cycle is
          likely to be repeated again and again.


     See Also
          fsck(ADM), ncheck(ADM)


     Notes
          If the file is open, clri is likely to be ineffective.

          This utility does not work on DOS filesystems.


     (printed 8/23/89)                                  CLRI(ADM)