clri is obsoleted for normal file system repair work by
fsck(8).
clri zeros out the inodes with the specified inode number(s) on the filesystem residing on the given
special_device. The
fsck(8) utility is usually run after
clri to reclaim the zero'ed inode(s) and the blocks previously claimed by those inode(s). Both read and write permission are required on the specified
special_device.
The primary purpose of this routine is to remove a file which for some reason is not being properly handled by
fsck(8). Once removed, it is anticipated that
fsck(8) will be able to clean up the resulting mess.