System engineering & DevOps

C programming language is a machine-independent programming language that is mainly used to create many types of applications and operating systems such as Windows, and other complicated programs such as the Oracle database, Git, Python interpreter, and games.

Project Objectives

• Entry point
• Print text
• Unary operator
• Compiling
• C coding style

General Requirements

• Editors: emacs, vi, vim
• Files will be compiled on Ubuntu 20.04 LTS using gcc, using the options -Wall -Werror -Wextra -pedantic -std=gnu89
• Scripts should be two lines long: $ wc -l <filename>
• Use Betty to check coding style

Installation

Betty Linter

To run the Betty linter just with command betty <filename>:

• Go to the Betty repository
• Clone the repo to your local machine
• cd into the Betty directory
• Install the linter with sudo ./install.sh
• emacs or vi create a new file called betty, and copy the script below:

  #!/bin/bash
  # Simply a wrapper script to keep you from having to use betty-style
  # and betty-doc separately on every item.
  # Originally by Tim Britton (@wintermanc3r), multiargument added by
  # Larry Madeo (@hillmonkey)

  BIN_PATH="/usr/local/bin"
  BETTY_STYLE="betty-style"
  BETTY_DOC="betty-doc"

  if [ "$#" = "0" ]; then
      echo "No arguments passed."
      exit 1
  fi

  for argument in "$@" ; do
      echo -e "\n========== $argument =========="
      ${BIN_PATH}/${BETTY_STYLE} "$argument"
      ${BIN_PATH}/${BETTY_DOC} "$argument"
  done

• Once saved, exit file and change permissions to apply to all users with chmod a+x betty.
• Move the betty file into /bin/ directory or somewhere else in your $PATH with sudo mv betty /bin/.

You can now type betty <filename> to run the Betty linter!

Project Directories

PROJECTS	DIRECTORY
1. C - Hello, World	0x00. C - Hello, World
2. Variables, if, else, while	0x01. C - Variables, if, else, while
3. C - Functions, nested loops	0x02-functions_nested_loops
4. debugging	0x03-debugging
5. more, functions, nested, loops	0x04-more-functions-nested-loops
6. C - Pointers, arrays and strings	0x05-pointers_arrays_strings
7. C - More pointers, arrays and strings	0x06-pointers_arrays_strings
8. C - Even more pointers, arrays and strings	0x07-pointers_arrays_strings
9. C - Recursion	0x08-recursion
10. C - Static libraries	0x09-static_libraries
11. C - argc, argv	0x0A-argc_argv
12. C - malloc, free	0x0B-malloc_free
13. C - More malloc, free	0x0C-more_malloc_free
14. C - Preprocessor	0x0D-C_Preprocessor
15. C - Structures, typedef	0x0E-Structures_typedef
16. C - Function pointers	0x0F-Function_pointers
17. C - Variadic functions	0x10-Variadic_functions
18. C - Singly linked lists	0x12-Singly_linked_lists
19. C - More singly linked lists	0x13-More_singly_linked_lists
20. C - Bit manipulation	0x14-Bit_manipulation
20. C - File I/O	0x15-File_I/O

Acknowledgements

ALX Africa