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etags, ctags – generate tag file for Emacs, vi
USAGE
etags [-aCDGImRVh] [-i file] [-l language]
[-o tagfile] [-r regexp]
[--append] [--no-defines] [--no-globals] [--include=file]
[--ignore-indentation] [--language=language] [--members]
[...]

ctags and etags programs generate an index file for a variety of language objects.

USAGE
ctags [options] [file(s)]

etags [options] [file(s)]

DESCRIPTION
The ctags and etags programs (hereinafter collectively referred to as
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