https://github.com/mushigarou/pipex

Pipex handles pipes and redirections in Unix / Linux systems
https://github.com/mushigarou/pipex

unix unix-command unix-philosophy

Last synced: 9 days ago
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Pipex handles pipes and redirections in Unix / Linux systems

• Host: GitHub
• URL: https://github.com/mushigarou/pipex
• Owner: Mushigarou
• License: mit
• Created: 2023-02-17T05:20:53.000Z (over 1 year ago)
• Default Branch: main
• Last Pushed: 2024-07-15T03:36:07.000Z (4 months ago)
• Last Synced: 2024-07-15T04:43:29.850Z (4 months ago)
• Topics: unix, unix-command, unix-philosophy
• Language: C
• Homepage:
• Size: 172 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Pipex

## Usage

Pipex is a program that handles pipes and redirections in Unix / Linux systems.

For the mandatory part :

```

 make

 ./pipex infile cmd_1 cmd_2 outfile

 ```

 

For the bonus part :

```

 make

 ./pipex infile cmd_1 ... cmd_n outfile

 ```

 

The program supports heredocument too, here is the syntax that should be given to the program :

```

 ./pipex here_doc DELIMITER cmd_1 ... cmd_n outfile

 ```

 

In the mandatoy part, I've created one pipe (pipe(2)) to communicate between the two child processes. Then, i forked (fork(2)) twice in the parent process, and i wait for the child processes before returning zero upon successful completion.

Making a command write its output in the pipe, instead of STDOUT_FILENO, is done by using the dup2(2) function.

## Visualisation On How To Handle A Single Pipe :

![Page_2_3](https://user-images.githubusercontent.com/115739322/226490616-32166bc2-e2c7-4d64-a587-e4fed3b45c85.png)

## Bonus

For the bonus part, we have to handle multiple pipes, and `«` and `»` when the first parameter is "here_doc".

### This command:

```

 ./pipex file1 cmd1 cmd2 cmd3 ... cmdn file2

 ```

 

Should behave like :

```

 < file1 cmd1 | cmd2 | cmd3 ... | cmdn > file2

 ```

### And this :

```

 ./pipex here_doc LIMITER cmd cmd1 file

 ```

Should behave like

```

$> cmd << LIMITER | cmd1 >> file

```

## Visualisation On How To Handle Multiple Pipes :

![Page_1_4](https://user-images.githubusercontent.com/115739322/227705339-e15003c5-fde2-4436-98b3-8912e3870d32.png)

This project is licensed under the MIT license