PIPEX

Your program will be executed as follows:

./pipex file1 cmd1 cmd2 file2

It must take 4 arguments:

file1 and file2 are file names.
cmd1 and cmd2 are shell commands with their parameters. It must behave exactly the same as the shell command below:

$> < file1 cmd1 | cmd2 > file2

$> ./pipex infile "ls -l" "wc -l" outfile

Should behave like: < infile ls -l | wc -l > outfile

$> ./pipex infile "grep a1" "wc -w" outfile

Should behave like: < infile grep a1 | wc -w > outfile

Your project must comply with the following rules:

You have to turn in a Makefile which will compile your source files. It must not relink.
You have to handle errors thoroughly. In no way your program should quit unexpectedly (segmentation fault, bus error, double free, and so forth).
Your program mustn’t have memory leaks.
If you have any doubt, handle the errors like the shell command: < file1 cmd1 | cmd2 > file2

You will get extra points if you:

Handle multiple pipes.

This: $> ./pipex file1 cmd1 cmd2 cmd3 ... cmdn file2

Should behave like: < file1 cmd1 | cmd2 | cmd3 ... | cmdn > file2
Support « and » when the first parameter is "here_doc".

This: $> ./pipex here_doc LIMITER cmd cmd1 file Should behave like: cmd << LIMITER | cmd1 >> file

hjabbouri/pipex