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26 lines
600 B
26 lines
600 B
11 years ago
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unset
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Unset a variable, cache variable, or environment variable.
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::
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unset(<variable> [CACHE | PARENT_SCOPE])
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Removes the specified variable causing it to become undefined. If
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CACHE is present then the variable is removed from the cache instead
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of the current scope.
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If PARENT_SCOPE is present then the variable is removed from the scope
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above the current scope. See the same option in the set() command for
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further details.
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<variable> can be an environment variable such as:
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::
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unset(ENV{LD_LIBRARY_PATH})
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in which case the variable will be removed from the current
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environment.
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