CLRI(8) Maintenance Commands and Procedures CLRI(8)

NAME

clri, dcopy - clear inode

SYNOPSIS

clri [-F FSType] [-V] special i-number


dcopy [-F FSType] [-V] special i-number

DESCRIPTION

clri writes zeros on the inodes with the decimal i-number on the file
system stored on special. After clri, any blocks in the affected file
show up as missing in an fsck(8) of special.


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


The primary purpose of this routine is to remove a file that for some
reason appears in no directory. If it is used to zap an inode that does
appear in a directory, care should be taken to track down the entry and
remove it. Otherwise, when the inode is reallocated to some new file,
the old entry will still point to that 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.


dcopy is a symbolic link to clri.

OPTIONS

-F FSType
Specify the FSType on which to operate. The FSType should
either be specified here or be determinable from
/etc/vfstab by matching special with an entry in the table,
or by consulting /etc/default/fs.


-V
Echo the complete command line, but do not execute the
command. The command line is generated by using the options
and arguments provided by the user and adding to them
information derived from /etc/vfstab. This option should be
used to verify and validate the command line.

USAGE

See largefile(7) for the description of the behavior of clri and dcopy
when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).

FILES

/etc/default/fs
Default local file system type


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

SEE ALSO

vfstab(5), attributes(7), largefile(7), fsck(8)

NOTES

This command might not be supported for all FSTypes.

September 16, 1996 CLRI(8)