"better as in simpler"
These intend to follow a derivative of the original UNIX philosophy, which will eventually be documented in this repository.
PROGRAMS / A list of the utilities with brief descriptions
Installation
You'll need a C compiler with support for the C99 or C11 standard; and the make program. If you're on OS X, BSD, or Linux (or most POSIX systems) you probably already have these, so don't worry yourself.
- To compile one of the single utilities by itself:
make utility(obviously replace 'utility' withlsorcator whatever) - To compile all of the utilities:
make.
If you want to be able to run the commands from anywhere, they'll need to be in
your PATH environment variable. Thing is, you probably already have a program
called cat and ls, etc. in your PATH. So, in order to override those
conflicting programs, and use the iu coreutils, place the folder that you
compiled the programs in to the beginning of your PATH, not the end.
Header Files
Until it gets larger, I will not be using header files for this project.
As said above, each utility gets its own C file, in which the main function
comes first. Above the main function will be written the signatures of the
functions that follow.
Placing the main function first is important because an entry point to the
program should also be an entry point to the file.
Compilers
I am using Clang, not GCC. Clang seems to me like it is a leaner and more
lightweight compiler - speaking of which, I may switch to TCC in the future for
this project.
When building the iu coreutils, it's up to you which compiler you use; I'm
not going to take charge of your life. Just make sure you've set it as your
CC variable.
cat - sequentially read specified files and output the contents (to stdout by
default).
lnum - prepend line numbers to the input. can be used as a filter (e.g.
cat file.txt | lnum), can be applied directly to files (lnum file.txt).
Chooses stdin by default, when run with no arguments.
ls - lists files in the directories specified. -a option includes hidden
files.