🚀 SYNOPSIS

The pipex project at 42 school challenges students to craft a program emulating the intricacies of shell command pipelines in the C language.

This endeavor necessitates a deep comprehension of process creation, manipulation, and input/output redirection. Students are tasked with orchestrating a sequence of commands, efficiently directing the output of one command as the input for the next.

The project not only hones skills in managing processes but also delves into the nuances of handling file descriptors and executing commands in a seamless chain.

Successfully completing pipex showcases a mastery of process manipulation and solidifies the understanding of pivotal system calls in Unix-like operating systems.

🛠️ PROGRAM SPECIFICITIES AND CONSIDERATIONS

The program behaves like this :

./pipex file1 cmd1 cmd2 file2

which mimics the real shell command

< file1 cmd1 | cmd2 > file2

Examples :

./pipex infile.txt "ls -l" "wc -l" outfile.txt

Important

The way the project is built means that pipex is expecting COMMANDS AND OPTIONS grouped in a single argument, surrounded with "double-quotes".

The command :

./pipex infile.txt ls -l wc -l outfile.txt

will actually fail.

⚙️ USAGE

Step 1 :

Clone the project :

git clone https://github.com/maitreverge/pipex.git && cd pipex

Step 2 :

Build the project in your shell environment running :

make

You'll end up with an pipex executable file.

Step 3 :

Let's make a basic example. You'll need to create an infile.txt from which pipex will read in STD_IN :

echo "Hello, World\!" > infile.txt

Step 4 :

Execute pipex :

./pipex infile.txt "cat" "rev" outfile.txt

This will create an outfile from which you can read :

cat outfile.txt

You should see the bellow result :

!dlroW ,olleH

🤝 CONTRIBUTION

Contributions are open, make a pull request or open an issue 🚀