/pipex (root project folder)
|
|____/bin (the final executable file)
|
|___/include (header files, .h)
|
|____/src (source files, .c)
|
|____/obj (where the generated .o files will be)
|
|____/lib (any library dependences)
|
|____Makefile (make instructions file)
|
|____README (general readme of the project)
|
|___/bonus
|
|____/bin (the final executable file)
|
|___/include (header files, .h)
|
|____/src (every source file, .c and .c)
|
|____/obj (where the generated .o files will be)
|
|____/lib (any library dependences)
open a terminal window in the project directory
$> make
for mandatory part you can execute commands like
$> bin/pipex "infile" "command1" "command2" "outfile"
behave exactly like
$> < infile command1 | command2 > outfile
and you can find the output in the outfile exist in the root directory of the project
open a terminal window in the project directory
$> make bonus
for bonus part you can execute commands like
$> bonus/bin/pipex "infile" "command 1" "command 2" ... "command n" "outfile"
behave exactly like
$> < infile command1 | command2 | ... | "command n" > outfile
and you can find the output in the outfile exist in the bonus directory
and you can execute commands like :
$> bonus/bin/pipex "here_doc" LIMITER command1 command2 outfile
you got a open file
$> pipe heredoc>
^^ enter a text and th limiter this one behave like
$> command1 << LIMITER | command2 >> outfile
to delete object file
$> make clean
to delete object files and executable file
$> make fclean
main process
|
|
| \/ for each command \/
|_______________________________________________________________________________________________
|\ |
| \ |
| \ |
| \ |
| \ |
| \ |
| pipe(fd) |
| | |
| | pid = fork() |
| | |
| |___________child process |
| | dup2(fd[1], STDOUT) |
| | close(fd[0]) |
| | close(fd[1]) |
| |______ execve(command path, command, envp) // this function kill process |
| | |
| ________|___ parent process |
| / | |
| / | dup2(fd[0], STDIN) |
| / | close(fd[1]) |
| / |__ close(fd[0]) |
| / |
| / |
|/______________________________________________________________________________________________|
|
|
|
|___________ parent process == main proccess |
| |
| dup2(outfile, STDOUT) | < for last command
|__execve(command path, command, envp) |
