Indentar código automaticamente usando emacs na linha de comando

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.emacs

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;; Coding Style for Enlightenment Foundations Libraries

(c-add-style

"e17"

'("gnu"

(indent-tabs-mode . t)

(tab-width . 8)

(c-offsets-alist

.

((defun-block-intro . 3)

(statement-block-intro . 3)

(case-label . 1)

(statement-case-intro . 3)

(inclass . 3)

))))

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Arquivo main.c
emacs -batch main.c --eval '(lambda() (c-set-style "e17") (indent-region (point-min) (point-max) nil))' -f save-buffer

Todos os arquivo do diretório
for i in *; do emacs -batch $i --eval '(lambda() (c-set-style "e17") (indent-region (point-min) (point-max) nil))' -f save-buffer; done;