The use of ctags and makefile in Liunx

1. Ctags is a tool that can help you read the code under VIM, and it's easy to see the program's source code

   There are two ways to use Ctags: (1). You can create a file in any directory, and then use the Ctags *.c, which means to generate a label file for all the files in the current directory (Vim can be tagged and jump to the tag file) for example:

   Vim Ctag.h

   Vim ctag.c

   Vim MAIN.C

   
   

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Move the cursor to the fun function in main.c, press ctrl+[to jump to the place where the fun function is defined, that is, CTAG.C, ctrl+t turn to main.c function

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(2). Input Ctags-r,-R for recursive creation, in the current directory generated tags file, when the user runs vim in the current directory, will automatically load this tags file, tags file contains a list of these objects, You can use the tags file to find these definitions or tagged objects when running vim.

2.makefile

The source files in a project are not counted, and they are placed in several directories by type, function and module, makefile defines a series of rules to specify which files need to be compiled first, which files need to be compiled, which files need to be recompiled, and even more complex function operations, because Makefile is like a shell script, which can also execute commands for the operating system. Makefile brings the advantage is-"automated compilation", once written, only need a make command, the entire project is automatically compiled, greatly improving the efficiency of software development. Example: Create a t.c file, and then build a makefile file

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note:  
After you've defined the dependencies, The subsequent line defines how to generate the operating system commands for the target file, so be sure to start with a TAB key. Remember, make and no matter how the command works, he just executes the defined command.  
clean is not a file, is an action noun, make clean uses it to clear all the target files, so that it can be re-compiled.

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The working process of make:

1. Find "makefile" or "makefile" files in the current directory

2. If you find it, you can find the "T" file as the target file.

3. If the "T" file is not found, find the t.o file that "T" depends on

4. Generate T.O files based on dependent files for T.O files

5. Execute sequentially until the executable file is generated
   

The use of ctags and makefile in Liunx