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CHKDSK (2)

CHKDSK

The "hidden files" are your DOS system files. These show up on all DOS disks. "User files" are those that are listed when the DIR command is used.

The amount of available disk space is perhaps the most important line
in the report. This tells you if you have enough space on a disk for
continued work. If the amount of space is limited, it may be time to use
another disk, delete obsolete files to recover disk space, or copy
inactive files to another disk and then delete them from the current one.

Notice that the CHKDSK command also gives you a report on your computer's memory. The total amount of memory and the amount of free memory is displayed. In the first sample report, the system is using
41,520 bytes (or characters) of memory space. This is often called system overhead. The second example shows a substantial amount of memory in use by DOS and other memory-resident programs. Here, it
is probably advisable to deactivate memory-resident programs if you must run a large application program. As a precaution, memory-resident programs should be turned off in the reverse order of turn-on. Otherwise, you are likely to experience a system "crash."

CHKDSK /N-Displays each directory and file as it is encountered by the program. Also displays disk error information.

CHKDSK /F-Used to recover (or fix) disk space that has been. misallocated in the directory. Places recovered disk space into files and assigns filenames beginning with FILE0000.CHK,
FILE0001.CHK, and so on.

CHKDSK filename-Checks the designated file for continuity in the 23 it is arranged on the disk. Displays a message telling whether the file blocks used are contiguous.

CHKDSK .--Checks all files on the designated disk for continuity. Lists the names and number of non contiguous blocks for all files having more than one contiguous block.
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