etags linux command

etags

etags [options] files

Create a list of function and macro names that are defined in the specified C, Pascal, FORTRAN, yacc, or flex source files. The output list (named tags by default) contains lines of the form:

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 Emacs on any file and type:

You will be prompted for the name of the tag table; the default is TAGS. To switch to the source file associated with the name listed in tagsfile, type:

You will be prompted for the tag you would like Emacs to search for. ctags produces an equivalent tags file for use with vi.

Options

-a, --append

Append tag output to existing list of tags.

-d, --defines

Include tag entries for C preprocessor definitions.

-i file, --include=file

Add a note to the tags file that file should be consulted in addition to the normal input file.

-l language, --language=language

Consider the files that follow this option to be written in language. Use the -h option for a list of languages and their default filename extensions.

-o file, --output=file

Write to file.

-r regexp, --regex=regexp

Include a tag for each line that matches regexp in the files following this option.

-C, --c++

Expect .c and .h files to contain C++, not C, code.

-D, --no-defines

Do not include tag entries for C preprocessor definitions.

-H, -h, --help

Print usage information.

-R, --noregex

Don't include tags based on regular-expression matching for the files that follow this option.

-S, --ignore-indentation

Normally etags uses indentation to parse the tag file; this option tells it to rely on it less.

-V, --version

Print the version number.