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4
votes
1answer
27 views

Is it possible to change what tty a terminal emulator is connected to?

If I have a terminal emulator (say, xterm) by default it connects to a pseudoterminal like /dev/pts/3 What I would like to know is if it is possible to connect it directly to, say, tty1? Could I ...
0
votes
0answers
18 views

fix ctrl-O in xterm?

I'm trying to investigate the vt100 alternate graphics character-set with xterm. And somehow my setup doesn't allow the examples to work correctly. The sequence "Esc(B" sets the G0 character set to ...
17
votes
2answers
278 views

How can we know who's at the other end of a pseudo-terminal device?

If I do a: echo foo > /dev/pts/12 Some process will read that foo\n from its file descriptor to the master side. Is there a way to find out what that(those) process(es) is(are)? Or in other ...
0
votes
0answers
11 views

Where can I find more information about /dev/pts/*, /dev/ptmx, tty and pseudo terminals [duplicate]

As in the title I what to know more about terminals and pseudo terminals, how they are created and how to create my own terminal emulator. man for pts and ptsname show some hints, but I want to learn ...
1
vote
1answer
219 views

Why root can't open pseudo terminal device? (permission denied)

Using a non-root user, I'm creating a pseudo terminal with socat like this: socat -d -d PTY,link=$HOME/.wine/dosdevices/com1,raw,echo=0 PTY,link=/tmp/com1-pty,raw,echo=0 and I need a root ...
1
vote
0answers
69 views

Which process is occupying a certain pseudo terminal pts/X?

On Linux: Normally pseudo terminals are allocated one after the other. Today I realized that even after a reboot of my laptop the first opened terminal window (which was always pts/0 earlier) ...
2
votes
0answers
297 views

Trying to understand how TTYs and PTYs work in CentOS 6.5? [duplicate]

I started to dig into the whole Linux pty and tty hell. I'm trying to understand how it works here in Linux so I was reading quite a lot of articles that covered this topic. So far I know: TTYs ...
3
votes
1answer
160 views

What is the maximum allowed number of TTY, is it defined anywhere in kernel headers?

What's the maximum allowed number of TTYs? I found pty.max, but is there anything similar for TTYs? Or is it defined as a fixed value in kernel headers, I couldn't find that
6
votes
3answers
3k views

what is stored in /dev/pts files and Can we open those?

I am curious to know that what is stored in /dev/pts/ files . Can we open those files ? According to my knowledge /dev/pts files are created for ssh or telnet session .
11
votes
2answers
1k views

How does a Linux terminal work?

If you fire up a terminal and call an executable (assuming one thats line oriented for simplicity) you get a reply to the command from the executable. How does this get printed to you (the user) does ...