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:eval
The :eval
header argument can be used to limit the evaluation of
specific code blocks. The :eval
header argument can be useful for
protecting against the evaluation of dangerous code blocks or to ensure that
evaluation will require a query regardless of the value of the
org-confirm-babel-evaluate
variable. The possible values of
:eval
and their effects are shown below.
never or no
The code block will not be evaluated under any circumstances.
query
Evaluation of the code block will require a query.
never-export or no-export
The code block will not be evaluated during export but may still be called interactively.
query-export
Evaluation of the code block during export will require a query.
If this header argument is not set then evaluation is determined by the value
of the org-confirm-babel-evaluate
variable see Code evaluation security.