Removes access to commands temporarily.
Enter the name of the command to undefine.
Undefined commands are accessed:
- By prefixing the command name with a dot, such as: .CommandName.
- By using the REDEFINE command to recover the command name.
Note: Commands are undefined by developers who want to replace the command with a more extensive version they’re written, or to prevent neophytes from using destructive commands, like ERASE and EXPLODE.