A Unix pipe connects the STDOUT (standard output) file descriptor of the first process to the STDIN (standard input) of the second. What happens then is that when the first process writes to its STDOUT, that output can be immediately read (from STDIN) by the second process. Using multiple pipes is no different than using … Read more
Both on Windows and POSIX systems, named-pipes provide a way for inter-process communication to occur among processes running on the same machine. What named pipes give you is a way to send your data without having the performance penalty of involving the network stack. Just like you have a server listening to a IP address/port … Read more
It works ok as a single tool: but it doesn’t work in a pipeline: it returns: What is the problem with piping the cURL output? How to buffer the whole cURL output and then handle it?
Os You can list all files in the current directory using os.listdir: Glob Or you can list only some files, depending on the file pattern using the glob module: It doesn’t have to be the current directory you can list them in any path you want: Pipe Or you can even use the pipe as you specified using fileinput And … Read more
I believe the issue here is that your waiting and closing inside the same loop that’s creating children. On the first iteration, the child will exec (which will destroy the child program, overwriting it with your first command) and then the parent closes all of its file descriptors and waits for the child to finish … Read more
cat 1.txt – | ./game This cat is pointless, you could just as easily do this: ./game < 1.txt. Which can also be used to run the game under GDB: See also this answer.
CONIN$ is the console input device. Normally, stdin is an open file handle to this, but if stdin is redirected for some reason, then using CONIN$ will allow you to get access to the console despite the redirection. Reference.
Since there were no exact answers to my question, I made some investigation why my code doesn’t work when there are other solutions that works, and decided to post what I found to complete the subject.As it turns out: “ssh uses direct TTY access to make sure that the password is indeed issued by an … Read more