11/3/71 CHECK (I)
NAME check -- file system consistency check
SYNOPSIS check [ filesystem [ blockno ... ] ]
1
DESCRIPTION check will examine a file system, build a bit map
of used blocks, and compare this bit map against
the bit map maintained on the file system. If
the file system is not specified, a check of both
/dev/rf0 and /dev/rk0 is performed. Output in-
cludes the number of files on the file system,
the number of these that are 'large', the number
of used blocks, and the number of free blocks.
FILES /dev/rf0, /dev/rk0
SEE ALSO find
DIAGNOSTICS Diagnostics are produced for blocks missing, du-
plicated, and bad block addresses. Diagnostics
are also produced for block numbers passed as pa-
rameters. In each case, the block number, i-
number, and block class (i = inode, x indirect, f
free) is printed.
BUGS The checking process is two pass in nature. If
checking is done on an active file system, extra-
neous diagnostics may occur.
The swap space on the RF file system is not ac-
counted for and will therefore show up as `miss-
ing'.
OWNER ken, dmr