6-16 ROM-DOS Commands
MX2 Reference Guide Revision A MX2A137REFGD
COMMAND.COM
Type
External
Purpose
Start a new command processor.
Syntax
COMMAND[device][/E:number][/K:filename]
[/P][/C string][/MSG]
Remarks
This command starts a new copy of the ROM-DOS command processor.
The command processor is the program that has all the internal DOS
commands in it.
Starting a new command processor will also produce a new
environment. The size of the environment is 128 bytes by default, but it
can be changed using the /E switch.
Command and its arguments can also be used in a SHELL= statement in
your config.sys file. See the full description of SHELL for more details.
Options
The device option specifies that COMMAND.COM should use a
different device, such as AUX, for input and output.
The /E:number switch sets the environment size. Number represents the
size of the environment in bytes. Number must be in the range from 160
to 32768. All other values will be ignored and the default value of 256
will be used. ROM-DOS will round the value entered up to the nearest
multiple of 16.
The /K:filename option tells the command processor to run the specified
filename and then display the ROM-DOS command prompt. It is not
recommended that this option be used in a CONFIG.SYS SHELL=
statement.
The /P switch causes COMMAND not to exit, or in other words, to
remain permanent. The /P switch should be used only when command is
used in a CONFIG.SYS SHELL statement.
