14.8.2.7 :tangle

The :tangle header argument specifies whether or not the code block should be included in tangled extraction of source code files.

• tangle The code block is exported to a source code file named after the full path (including the directory) and file name (w/o extension) of the Org mode file. E.g., :tangle yes.
• no The default. The code block is not exported to a source code file. E.g., :tangle no.
• other Any other string passed to the :tangle header argument is interpreted as a path (directory and file name relative to the directory of the Org mode file) to which the block will be exported. E.g., :tangle path.