Linux in a Nutshell, Fifth Edition

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Chapter 3: Linux Commands

This is the Title of the Book, eMatter Edition

Copyright © 2006 O’Reilly & Associates, Inc. All rights reserved.

ctags

ctags [options] files

Create a list of function and macro names defined in a program-

ming source file. More than one file may be specified. ctags

understands many programming languages, including C, C++,

FORTRAN, Java, Perl, Python, flex, yacc, and bison. The output

list (named tags by default) contains lines of the form:

name file context

where name is the function or macro name, file is the source file in

which name is defined, and context is a search pattern that shows

the line of code containing name. After the list of tags is created,

you can invoke vi on any file and type:

:set tags=tagsfile

:tag name

This switches the vi editor to the source file associated with the

name listed in tagsfile (which you specify with -t).

etags produces an equivalent file for tags to be used with Emacs.

Options

-a Append tag output to existing list of tags.

-e Create tag files for use with emacs.

-h extensionlist

Interpret files with filename extensions specified in extension-

list as header files. The default list is “.h.H.hh.hpp.hxx.h++.

inc.def”. To indicate that files without extensions should be

treated as header files, insert an additional period in the list

before another period or at the end of the list, or use just a

period by itself. To use this option multiple ...