The character based display-interface between human and computer.

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5
votes
1answer
713 views

Read what is written to /dev/tty*

How can I read what is written to /dev/tty*(* = 0 - number of tty)? I tried sudo tail -f /dev/tty1 on one terminal(X) and then sudo cp .emacs /dev/tty1 from another. X didn't show the the content of ...
13
votes
4answers
527 views

Is there any reason why I get ^[[A when I press up arrow at the console login screen?

Whenever I'm at the console login, I press up arrow intentionally to see the previously typed commands. But I see this ^[[A. But when I press Ctrl Alt Print Screen Scroll Lock Pause Break Page Up ...
2
votes
2answers
279 views

How can I replace a tty using getty with qingy on ubuntu 12.04 or later?

Qingy is a getty replacement. I'd like to use it for a tty terminal on Linux Mint 15 (in hopes of getting tmux to get proper 256 colors in tty which fails with fbterm) which means replacing getty. ...
2
votes
2answers
60 views

How do I prevent the screen from blanking?

I am running 12.04 Ubuntu Server and my screen blanks after some time. I am unable to unblank it without power cycling the computer. I can however log in via ssh and type who see that the tty1 ...
0
votes
0answers
49 views

Opening TTY or using IBus freezes Linux?

For some reason, whenever I open a TTY, if I switch back to X11, it will be completely frozen except for the cursor. The exact same thing also happens whenever I use IBus to switch to ibus-mozc for ...
29
votes
1answer
702 views

What happens when Ctrl + Alt + F<Num> is pressed?

I am looking for an explanation of what happens in Linux when this key combination is pressed to change the current terminal. In particular, what software component intercepts this key combination and ...
1
vote
1answer
48 views

Capture textual snapshot of pseudo terminal

My question is related to Keyboard and Console, but I want to do it for an arbitrary pseudo terminal, and not just the built-in Linux ones. Also, I'm not interested in a stream, I just want the ...
1
vote
0answers
425 views

Debian 7 - Startx fails to start system

When I boot into the second primary boot loader, I get to the text based console to boot when I type 'startx'. The screen loads, and goes black for 10 seconds. Then when it loads a white screen ...
0
votes
2answers
68 views

Why does the FreeBSD handbook recommend using a virtual console because of system messages? [closed]

Quoting from the FreeBSD Handbook, in section 4.2.1. “Virtual Consoles”: While the system console can be used to interact with the system, a user working from the command line at the keyboard of a ...
0
votes
0answers
69 views

What does it mean to redirect /dev/console through a non-existent file?

I have been trying to follow the "NAND firmware update" tutorial and I am perplexed by these last lines: now, in second stage, all processes are gone, only /dev/console in old root is still open ...
3
votes
0answers
102 views

Getty not starting in qemu

I'm trying to get running an ARM based Debian inside qemu. As a rootfs I'm using structure from embeddedarm 2gb sdcard image with versatile 2.6.24 kernel downloaded from fedora qemu tutorial site. At ...
2
votes
1answer
143 views

accessing stdin/stdout of a process started in another tty

I logged in to my linux physically(say tty1) and started a process that watches stdin for commands and has some stdout-put. How can I access/use this process from a SSH session?
4
votes
2answers
10k views

Can I change the font of terminal?

I have a Un*x OS installed without desktop, I wonder if it is possible to change the font of terminal.
3
votes
1answer
75 views

How can I capture an OpenBSD install console?

So.. How can I save the text that is based on Q/A's when installing an OpenBSD 5.3? Or I only have the choice to manually type the texts down? or an OCR software using printscreens?
1
vote
1answer
387 views

/dev/console dynamic redirection

Is it possible to dynamically redirect all data sent to /dev/console into something else (for example - to /dev/null, /dev/tty9 or even /dev/null)? Of course, it can be done statically via ...
2
votes
1answer
124 views

Graphical console applications in Emacs

I am having trouble running htop within an ansi-term in Emacs 24.2. It looks like some of the control characters are not interpreted correctly. I thought ansi-term was capable of handling font ...
1
vote
0answers
422 views

badblocks and “end_request: I/O error” in output

I have 500GB disk in my toshiba laptop, I tried to do backup of files in this HDD but it failed few times (ubuntu just closed copying operation or unmounted disk during copying files). So I boot my ...
1
vote
1answer
115 views

Scrambled Xen Console on dom0

I installed Xen using the recommended procedure on Ubuntu's site using motherboard Supermicro X7SBL-LN2 and Ubuntu 13.04 amd64. After the installing it and rebooting my console looks like this: ...
2
votes
3answers
137 views

RHEL - shutdown a locked out system

I have a RHEL system which is locked out. I don't have the password of the system. If am able to shut it down or properly restart it, I can edit the kernel to have single mode and then reset the ...
1
vote
2answers
3k views

How to set default console keyboard layout in Arch Linux?

Whenever I reboot my computer I have to set the keyboard layout in a console again with loadkeys. Is there a way to change the default keyboard layout that is loaded everytime the computer boots?
5
votes
2answers
2k views

How to change cursor shape, color, and blinkrate of Linux Console?

I know I can change some fundamental settings of the Linux console, things like fonts, for instance, with dpkg-reconfigure console-setup. But I'd like to change things like blinkrate, color, and ...
16
votes
2answers
10k views

How to colorize output of ls ?

I'm running CentOS in Linux text mode. When I run the command ls /usr/, the output is too hard to read (dark blue on black). How can I change the text coloring?
3
votes
2answers
2k views

256 color in real console

I have in my .bashrc export TERM=xterm-256color but this cause blinking all colored text (ls --color, in vim etc.) in real console (CTRL + ALT + F1) . So is there any possibility to recognize in ...
1
vote
0answers
33 views

How to get 256 color support in a login shell TTY? [duplicate]

I want to experiment with a fully text-based environment, however, the only thing that is stopping me - is getting 256 colors so my Vim color schemes could work perfectly. When I enter a TTY by ...
1
vote
2answers
217 views

What stream does perf use?

What stream does the perf command use!? I've been trying to capture it with (perf stat -x, -ecache-misses ./a.out>/dev/null) 2> results following http://stackoverflow.com/q/13232889/50305, ...
2
votes
1answer
220 views

Is many consoles in securetty file a risk?

I got a problem So I expect you can give me an answer. I have to evaluate the security of a RedHat server. The idea is review the /etc/securetty file to ensure that only the console tty is listed. But ...
1
vote
1answer
74 views

Clearing the “old” scrollback buffer

This might seem to be a duplicate question but it isn't. I know that I can use printf "\033f" to clear the scrollback buffer of the "current" session but that doesn't work for old sessions. My ...
2
votes
2answers
94 views

Looking for a GUI application to enter linux commands

I am looking for a GUI console where I can enter Linux commands in an entry widget and the result will be output in a text area widget. Is there is such software available? Something like this: In ...
1
vote
1answer
48 views

Emacs - Strange Whitespace

(I posted this same general question here on StackOverflow thinking it had something to do with my emacs configuration, but after following a comment there, I think it is exclusive to urxvt) My ...
6
votes
1answer
22k views

How to set the resolution in text consoles (troubleshoot when any `vga=…` fails)

It is a common way to set the resolution of a text consoles (that are usually available by Ctrl-Alt-F1 thru Ctrl-Alt-F6) by using a vga=... kernel parameter. I'm using Ubuntu 10.04 Lucid, output of ...
0
votes
0answers
46 views

Customizing console appearance [duplicate]

I recently made this thread about disabling the lightdm auto start. I got the solution I wanted, but some things are really unpleasant. For example when using ls directories are colored dark blue ...
1
vote
1answer
2k views

Change the number of rows and columns in the TTY [duplicate]

I want to resize the terminal which comes up when you press CtrlAltF1 (or F2,F3,...). 25x80 is small for a 24" screen. Tried using stty, but the commands stty columns 200 and stty rows 50 does not ...
3
votes
1answer
211 views

TERM=(linux|xterm) vi in an xterm or the AAABBBBBBCCDDD-problem

Usually when I want to run vim in a desktop konsole session, I make sure the TERM variable is set to linux as the arrow keys don't work in insert mode with TERM=xterm. They show capital A..D instead ...
1
vote
0answers
192 views

why cannot read /dev/console after reboot AIX

I use < /dev/console when running Micro-Focus cobol programs in background cron jobs instead of < /dev/null because then we don't get an warning about the input file not supporting ioctl. The ...
2
votes
1answer
80 views

console displaying quote character from gcc wongly

After an upgrade to debian wheezy my text consoles displays questions marks where there should be quotes Under X I see things correctly window.cpp:1056:21: error: base operand of ‘->’ is not a ...
3
votes
1answer
259 views

Loadkeys gives permission denied for normal user

I am trying to perform loadkeys operation. For normal user, I am getting permission denied error. the error is as follows. <tim@testps>~% loadkeys mykeys Loading /usr/tim/mykeys Keymap 0: ...
4
votes
2answers
766 views

Why are there so many virtual terminal devices?

I've been reading the Advanced Linux Programming book and it mentions about virtual terminals which, if I understood it correctly, it is a Linux-specific feature (not in Unix) to allow multiple login ...
4
votes
1answer
43 views

Whether monitor is off without appealing to X or /proc

How can I know whether the monitor is on or off if X is not running, and without appealing to /proc/acpi/video? The latter isn't available from my kernel. If X is running it's just a matter of $ ...
3
votes
1answer
155 views

Switch to TTYs without Function keys

At the moment I have a keyboard which lacks function keys (F1 through F12), and I was wondering - is there a way I could switch to textual TTYs (and back, which might prove to be a problem if I were ...
12
votes
2answers
1k views

Can I configure bash to execute “clear” before every command typed in the console?

I would like to configure bash to execute clear command every time I type some command in the terminal (before executing my command). How can I do that? I'm using Debian Linux.
7
votes
1answer
210 views

How do I prevent system information from being displayed on a terminal?

I'm working on a curses GUI that is supposed to start up automatically on boot-up in the default linux terminal (I have no X server installed). I have this working great, but I have a problem where ...
4
votes
1answer
571 views

Fix terminal after displaying a binary file

I'd tried command cat with an executable file: cat /bin/ls Now I can't read any word in this terminal (Linux console). How can I fix it?
6
votes
4answers
215 views

Is it possible to view media on the console?

I know the console (outside X11, e.g. /dev/tty1) works in text-mode, but I think if it is possible to play music using programs like cvlc and mplayer, it should be possible to view pictures and watch ...
2
votes
1answer
1k views

open /dev/fb0: No such device

I installed fbi framebuffer to view images on TTY terminals (outside X). When I do: fbi image.jpg it outputs the following error: open /dev/fb0 no such device Yet when I run ls /dev/fb*, I ...
1
vote
0answers
71 views

can I run xvfb on a console-only debian system

I am developing a console-only debian-based rescue cd loosly based on thfixed spelling.e live-system's rescue cd. One of the things I need for my livecd is to be able to run firefox for some testing, ...
2
votes
1answer
192 views

open() console for default file descriptors

I'm reading a shell program implementation in C ( the xv6 shell from MIT's 6.828 Operating System Engineering course ). The main() function for this shell starts with the following code: //Assumes ...
2
votes
2answers
275 views

incorrect lines display in ssh console

I have problem with my console drawing lines. The problem is when I connect through ssh to server everything draws ok. But when I use up arrow key to show last used commands it often leaves few ...
-2
votes
1answer
44 views

how do I save my buffer in vi without exiting?

how do I save my buffer in vi without exiting? .
1
vote
1answer
872 views

Installing video driver on Arch Linux

I have Arch Linux installed in console mode on an Intel-PC machine. My task is to write and run an OpenGL display program on the machine to check whether it meets the following conditions: It would ...
2
votes
1answer
47 views

mysql console, keeps outputting garbled text if 'b' key is pressed

mysql -u username -p mysql> Now in the console whenever I press the b key the screen goes berserk with garbled text: Google doesn't help here. Edit: using ubuntu 12.10 with xterm or the ...