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(emacs-lisp-intro.info)Several files

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Enter node , (file) or (file)node

Count Words in `defuns' in Different Files
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   In the previous section, we created a function that returns a list of
the lengths of each definition in a file.  Now, we want to define a
function to return a master list of the lengths of the definitions in a
list of files.

   Working on each of a list of files is a repetitious act, so we can
use either a `while' loop or recursion.

lengths-list-many-files

Return a list of the lengths of defuns.

append

Attach one list to another.