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4-64 ROM-DOS Internal Commands
SHELL
CONFIG.SYS Command
The SHELL command allows you to specify a command interpreter other
than the default COMMAND.COM or to load COMMAND.COM with non-
default arguments (parameters). ROM-DOS boots this new program, with
arguments, instead of that specified internally.
Syntax
SHELL = cmd_interpreter arguments
Remarks
The SHELL command is most often used to start the initial copy of
COMMAND with special parameters. One parameter provides a larger
environment than the default 128 bytes.
The
cmd
_
interpreter
can be any executable program. The full path,
including drive letter, should be specified if the program is not in the root
directory of the default drive.
Arguments
are optional and program-specific and vary depending on the
cmd
_
interpreter
being executed by the SHELL command.
Examples
SHELL=C:\COMMAND.COM /E:512 /P
Boots the standard Command Processor but sets the environment space
to 512 bytes (up from the default 128). The /P parameter tells
COMMAND that it is permanent (cannot terminate).
SHELL = C:\TEMP\MYPROG.EXE
Boots a program named MYPROG.EXE, located in the directory TEMP,
instead of the standard Command Processor.