https://github.com/almayor/ft_ls
Recoding ls command
https://github.com/almayor/ft_ls
21school 42 42school linux unix
Last synced: 2 months ago
JSON representation
Recoding ls command
- Host: GitHub
- URL: https://github.com/almayor/ft_ls
- Owner: almayor
- License: mit
- Created: 2020-06-25T06:31:51.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2020-09-12T17:58:58.000Z (over 4 years ago)
- Last Synced: 2025-01-30T05:26:44.308Z (4 months ago)
- Topics: 21school, 42, 42school, linux, unix
- Language: C
- Homepage:
- Size: 3.08 MB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# ft_ls
*This project is part of the official curriculum at [School 42](https://en.wikipedia.org/wiki/42_(school)).*
## Disclaimer
> In [School 42](https://en.wikipedia.org/wiki/42_(school)), almost every project must be written to comply with. coding standard (also known as the "[Norm](./docs/subjects/norme.en.pdf)"). As a result, the implementation of certain parts may appear strange.
## Overview
* [Official instructions](docs/ft_ls.en.pdf)
* The goal of this project is to practice writing extensible code with modular organization, as well as learning concepts related to Unix directory system.
* As per instructions, the project is realised using a C library compiled during [previous projects](http://github.com/almayor/libftprintfgnl).
* Only the following functions are allowed for the mandatory part
* `write`
* `opendir`
* `readdir`
* `closedir`
* `stat`
* `lstat`
* `getpwuid`
* `getgrgid`
* `listxattr`
* `getxattr`
* `time`
* `ctime`
* `readlink`
* `malloc`
* `free`
* `perror`
* `strerror`
* `exit`
## Work
The problem is to recreate the behaviour of `ls` Linux command as closely as possible. Please note that my machine runs on *OSX Catalina 10.15.1*, so I can only guarantee that it works as expected on it.
_Flags realised_
* `-1`
* `-A`
* `-a` (mandatory)
* `-C`
* `-c`
* `-d`
* `-F`
* `-f`
* `-G`
* `-h`
* `-i` (only works in combination with `-l`)
* `-k`
* `-L`
* `-l` (mandatory)
* `-m`
* `-n`
* `-o`
* `-p`
* `-q`
* `-R` (mandatory)
* `-r` (mandatory)
* `-S`
* `-s` (only works in combination with `-l`)
* `-T`
* `-t` (mandatory)
* `-u`
* `-U`
* `-v`
* `-x`
Support of the following environmental variables is implemented
* `BLOCKSIZE`
* `CLICOLOR`
* `CLICOLOR_FORCE`
* `LSCOLORS`
Colors, ACL and extended attributes are all supported. Performance as tested on a very large directory with `-lR` specified is ~70% of the standard `ls`.
## Build
To build executables, run
```sh
git clone [email protected]:almayor/ft_ls.git
cd ft_ls
git submodule update --init --recursive
make
```
## Acknowledgements
I am grateful to the entire team behind School 42 and its [Moscow branch](https://21-school.ru
), as well as to my fellow students for help and support.
---
If you have any questions, please contact me on Github.