42 Yerevan Pipex
For further information about 42cursus and its projects, please refer to 42cursus repo.
This pipex program takes an input file, performs a command on it, pipes the result to another command which then writes its result to an output file. The result is virtually identical to this kind of shell command.
For detailed information, refer to the subject of this project.
🚀 TLDR: Pipex is a 42 School project aimed to better understand shell redirection and
pipes, by handling them in C.
Note
Because of 42 School norm requirements:
- Each function can't have more than 25 lines of code.
- All variables are declared and aligned at the top of each function.
- Project should be created just with allowed functions otherwise it's cheating.
The program pipex should repeat the behavior of the next shell command:
$> < file1 cmd1 | cmd2 > file2and looks like this:
$> ./pipex file1 cmd1 cmd2 file2Note
All errors like: wrong commands, permission to files and etc are handled.
Program needs to handle multiple pipes:
$> < file1 cmd1 | cmd2 | cmd3 | ... | cmdn > file2and looks like this:
$> ./pipex file1 cmd1 cmd2 cmd3 ... cmdn file2The program is written in C language and thus needs the gcc compiler and some standard C libraries to run.
1. Compiling the program
To compile the program, run:
$ cd path/to/pipex && make2. How to run the program
Run the executable with commands of your choice:
./pipex input "cat" "wc -l" outputUse clean to delete all object files, fclean to remove executable and all object files, and re to recompile the program:
make clean / make fclean / make re