Displays, sets, or removes MS-DOS environment variables.
You use environment variables to control the behavior of some batch files
and programs and to control the way MS-DOS appears and works. The SET
command is often used in the AUTOEXEC.BAT or CONFIG.SYS files to set
environment variables each time you start MS-DOS.
To display the current environment settings, use the following syntax:
Specifies the variable you want to set or modify.
Specifies the string you want to associate with the specified variable.
For information about setting environment variables that MS-DOS uses to
control its own operations, see the <PATH>, <PROMPT>, <SHELL>, and <DIR>