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org: Using header arguments
org: Header arguments
14.8.2 Specific header arguments -------------------------------- Header arguments consist of an initial colon followed by the name of the argument in lowercase letters. The following header arguments are defined:
· var Pass arguments to code blocks
· results Specify the type of results and how they will
be collected and handled
· file Specify a path for file output
· file-desc Specify a description for file results
· dir Specify the default (possibly remote)
directory for code block execution
· exports Export code and/or results
· tangle Toggle tangling and specify file name
· mkdirp Toggle creation of parent directories of target
files during tangling
· comments Toggle insertion of comments in tangled
code files
· padline Control insertion of padding lines in tangled
code files
· no-expand Turn off variable assignment and noweb
expansion during tangling
· session Preserve the state of code evaluation
· noweb Toggle expansion of noweb references
· noweb-ref Specify block’s noweb reference resolution target
· noweb-sep String used to separate noweb references
· cache Avoid re-evaluating unchanged code blocks
· sep Delimiter for writing tabular results outside Org
· hlines Handle horizontal lines in tables
· colnames Handle column names in tables
· rownames Handle row names in tables
· shebang Make tangled files executable
· tangle-mode Set permission of tangled files
· eval Limit evaluation of specific code blocks
· wrap Mark source block evaluation results
· post Post processing of code block results
· prologue Text to prepend to code block body
· epilogue Text to append to code block body
Additional header arguments are defined on a language-specific basis,
see 
Languages.