14.8.2.9 :tangle

The :tangle header argument specifies if the ‘src’ code block is exported to source file(s).

• tangle Export the ‘src’ code block to source file. The file name for the source file is derived from the name of the Org file, and the file extension is derived from the source code language identifier. Example: :tangle yes.
• no The default. Do not extract the code a source code file. Example: :tangle no.
• other Export the ‘src’ code block to source file whose file name is derived from any string passed to the :tangle header argument. Org derives the file name as being relative to the directory of the Org file's location. Example: :tangle path.