.pa 1 .he 'CHECK (VIII)'1/20/73'CHECK (VIII)' .ti 0 NAME check -- file system consistency check .sp .ti 0 SYNOPSIS check_____ [ filesystem [ blockno918 ... ] ] .sp .ti 0 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 all of the normally mounted file systems is performed. Output includes the number of files on the file system, the number of these that are 'large', the number of indirect blocks, the number of used blocks, and the number of free blocks. .sp check_____ works by examining the i-nodes on the file system and is entirely independent of its directory hierarchy. The file system may be, but need not be, mounted. .ti 0 FILES /dev/rf?, /dev/rk?, /dev/rp? .sp .ti 0 SEE ALSO find(I), ds(I) .sp .ti 0 DIAGNOSTICS Diagnostics are produced for blocks missing, duplicated, and bad block addresses. Diagnostics are also produced for block numbers passed as parameters. In each case, the block number, i-number, and block class (i_ = inode, x_ indirect, f_ free) is printed. .sp .ti 0 BUGS The checking process is two pass in nature. If checking is done on an active file system, extraneous diagnostics may occur.