clri(1M)                         DG/UX 5.4.2                        clri(1M)


NAME
       clri - clear inode

SYNOPSIS
       /etc/clri filesys|special  i-number ...

   where:
       filesys   The pathname of the directory with which the file system is
                 associated in the file /etc/fstab

       special   The pathname of a special file referring to a device
                 containing an unmounted file system

       i-number  An inode number

DESCRIPTION
       Clri writes zeros on the bytes occupied by the inode numbered i-
       number.  The inode becomes allocatable.

       After clri is executed, any blocks in the affected file will show up
       as unallocated in an fsck(1M) of the file system.  Use clri very
       carefully and only in emergencies, since it can introduce
       inconsistencies into the file system.

       Read and write permission is required on the specified file-system
       device.

       The primary purpose of this command is to remove a file that doesn't
       appear in any directory.  If you use it to clear an inode that does
       appear in a directory, you should also remove the directory entry.
       Otherwise, when the inode is reallocated to a new file, the old entry
       will still point to that file.  If you remove the old entry then, the
       new file will be destroyed.  Since the new entry will again point to
       an unallocated inode, the whole cycle is likely to be repeated.

SEE ALSO
       fsck(1M), fsdb(1M), ncheck(1M), fs(4).

NOTES
       Fsck automatically removes files that don't appear in any directory.
       Whenever possible, use fsck instead of clri.

       Clri cannot be run on the root file system because that file system
       cannot be unmounted.













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