-i, –interactive keeps STDIN open even if not attached, which you need if you want to type any command at all. -t, –tty Allocates a pseudo-TTY, a pseudo terminal which connects a user’s “terminal” with stdin and stdout. (See container/container.go) If you do an echo, only -t is needed. But for an interactive session where … Read more
As suggested by the error message you obtain, you should try to use winpty (which is installed by default with Git-Bash) and thus run: winpty docker run –rm -v “/c/users/vipul rao/documents/github/wappalyzer:/opt/wappalyzer” -it wappalyzer/dev If this works, you may want to set a Bash alias to avoid manually prepending winpty all the time: echo “alias docker=”winpty … Read more
tty originally meant “teletype” and “pty” means “pseudo-teletype”. In UNIX, /dev/tty* is any device that acts like a “teletype”, i.e: a terminal. (Called teletype because that’s what we had for terminals in those benighted days.) A pty is a pseudotty, a device entry that acts like a terminal to the process reading and writing there, … Read more
With respect to the master/slave part of your question, from the pty(4) man page (which is referenced from the openpty(3) man page on my system): A pseudo terminal is a pair of character devices, a master device and a slave device. The slave device provides to a process an interface identical to that described in … Read more
The solution for me was to set -icanon mode on the TTY (using stty). Eg.: stty -icanon So, the the code that now works is: #!/usr/bin/php <?php system(“stty -icanon”); echo “input# “; while ($c = fread(STDIN, 1)) { echo “Read from STDIN: ” . $c . “\ninput# “; } ?> Output: input# fRead from STDIN: … Read more
With docker 1.3, there is a new command docker exec. This allows you to enter a running container: docker exec -it [container-id] bash Note: this assumes bash is installed on your container. You may run sh or whatever interactive shell is installed on the container.
It can be done from assembly, but it isn’t easy. You can’t use int 21h, that’s a DOS system call and it isn’t available under Linux. To get characters from the terminal under UNIX-like operating systems (such as Linux), you read from STDIN (file number 0). Normally, the read system call will block until the … Read more
This is a solution to run an interactive command in subprocess. It uses pseudo-terminal to make stdout non-blocking(also some command needs a tty device, eg. bash). it uses select to handle input and ouput to the subprocess. #!/usr/bin/env python # -*- coding: utf-8 -*- import os import sys import select import termios import tty import … Read more
I’ve solved my problems, so I post here the correct code in case someone needs similar stuff. Open Port int USB = open( “/dev/ttyUSB0”, O_RDWR| O_NOCTTY ); Set parameters struct termios tty; struct termios tty_old; memset (&tty, 0, sizeof tty); /* Error Handling */ if ( tcgetattr ( USB, &tty ) != 0 ) { … Read more
unbuffer, part of expect (sudo apt-get install expect-dev on Ubuntu Lucid), can fool a program into thinking it’s connected to a TTY. $ tty /dev/pts/3 $ echo | tty not a tty $ echo | unbuffer tty /dev/pts/11