MS DOS Command: FCBS

Reference from Microsoft MS-DOS cmd help

Description

Specifies the number of file control blocks (FCBs) that MS-DOS can have open at the same time. You can use this command only in your CONFIG.SYS file.

A file control block is a data structure that stores information about a file.

Syntax

Parameters

Remarks

Limitation on opening files

If a program tries to open more than x files by using file control blocks, MS-DOS might close the files that were opened earlier.

Recommended use of the FCBS command

You should use the FCBS command only if a program requires you to do so. Most newer programs do not require file control blocks. However, some older programs might require you to use the FCBS command in your CONFIG.SYS file.

Many programs use file handles. You can specify the number of file handles available using the FILES command.

Examples

To specify that MS-DOS can have up to eight file control blocks open at the same time, add the following line to your CONFIG.SYS file:

fcbs=8