UNDEFINE
UNDEFINE is the opposite of DEFINE, and erases a user variable definition. UNDEFINE is discussed in Chapter 4 .
UNDEF[INE]variable_name[variable_name...]
where:
- UNDEF[INE]
Is the command, which may be abbreviated to UNDEF.
- variable_name
Is the name of a user variable to delete. You can delete several variables with one command by listing them out separated by spaces.
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