The character based display-interface between human and computer.

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19 views

Is it possible to access to the framebuffer in order to put a pixel on the screen from the command line?

I am not sure if it is the only possible way, but I read that in order to put a single pixel onto the screen at a location of your choice one has to write something into a place called framebuffer. So ...
1
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0answers
15 views

What is the kernel frame buffer?

I was reading the "mplayer" man pages trying to play video using just the console, (I don't have or don't want to install X11). It mentions that I can use the kernel frame buffer device which is ...
4
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3answers
2k views

Try to disable console output, console=null doesn't work

as mentioned above, I want to to completely turn off the console output, but putting console= or console=null in the kernel command line doesn't change a thing. When I enque quiet to the kernel ...
5
votes
2answers
127 views

How and where is $TERM interpreted?

I'm wondering how some terminal magic works internally. While playing around with docker containers, the environment variable $TERM was not set. This led to strange-looking console applications like ...
2
votes
1answer
544 views

How can I make the TTY use the appropriate charset?

Note: forked of this per recommendation here. While I got the X keyboard layout right on my own after I fixed that stupid typo, I still can't set the console charset, key map, font map, or whatever ...
8
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2answers
502 views

Can I save output from a previous terminal command using only the keyboard?

I just spent the last two hours running a dd command (or picture any similar "difficult to re-do" scenario) from a live CD without a GUI; all I have is my trusty "multi-window" (CTRL+ALT+F#) Bash ...
2
votes
0answers
24 views

Different console font sizes on two installations of debian wheezy

I have installed Debian Wheezy on two different partitions of the same desktop computer. The first installation was done a few months ago with a version 7.5 iso image. The installation has been ...
20
votes
6answers
17k views

How to clear terminal completely?

When we use clear command or Ctrl+L in terminal, it clears terminal but we can still scroll back to view the last used commands. Is there a way to completely clear the terminal?
1
vote
0answers
53 views

How to rotate the LCD screen/framebuffer to 180 degree?

I have a custom board with a Freecale i.MX6Q SoC. I am using Linux kernel 3.03.35 and LCD is 3.5 inch RGB type display. I want to rotate my LCD screen to 180 degree. I tried a lot to pass parameters ...
2
votes
2answers
876 views

Console font - how to show accents?

Arch linux on VirtualBox. My problem is the console (not X) does not show accents like "á ã ç". The problem is showing, not typing. I have a text file with these accents and when I use "cat" the ...
2
votes
0answers
37 views

Keys for copy & paste in FreeBSD console

How do I copy paste text inside the FreeBSD console? I tried ctrl + c, ctrl + v super + c, super + v I have FreeBSD 10.1 installed in VirualBox on a Mac. I am selecting text with the mouse in ...
7
votes
7answers
23k views

Console tool to test internet bandwidth

I'm looking for a tool that will test my internet connection bandwidth and create an simple report like speedtest does. Do you know some program/tool that do this? Something with CentOS packages ...
3
votes
1answer
544 views

Boot graphical application straight from Linux bootup (without verbose boot messages and desktop)

Is it possible to boot from minimum Linux core(Linux/Android) to an application (preferably created in interchangeable platform languages such as C# – Mono / GTK / Java / C) without any verbose ...
3
votes
2answers
2k views

use mosh without giving up local scrollback / history?

Is there a way to use mosh without giving up the local scrollback? Basically, in some circumstances, IP-roaming is indeed useful and needed, but the extra terminal emulation and key prediction seems ...
0
votes
1answer
23 views

Historical bandwidth data in a console? (save/load statistics)

So, I found that nload and iftop displays the amount of data that passed and how fast. Now, is there anything like those that can save/load statistics? I want to measure the amount of data I download ...
6
votes
2answers
262 views

How to disable Alt-Arrow switching of Virtual Consoles?

The following happens on different Linuces: When I'm in a virtual console, hold Alt and press ← or →, the virtual ttys cycle. This is really annoying as I'm using fish-shell which also uses this key ...
2
votes
1answer
21 views

How can I connect and upload to this FTP host on the console?

A vendor has provided these FTP connection params so I can upload some data for them... Host: host.com Port: 46800 Protocol: FTP – File Transfer Protocol Encryption: Require implicit FTP over TLS ...
2
votes
3answers
39 views

How to launch xev from console?

I am trying to launch Xev from console, it always gives "unable to open display", I need to launch xev from a console as another user (I use sudo -u '#1000' to do this). I know xev has a "display" ...
9
votes
3answers
6k views

Viewing system console messages in GUI

Under Linux, is it possible to view error messages that show up on the text mode terminal while in GUI mode, instead of having to press Ctrl+Alt+F1 or Ctrl+Alt+F2 to view the messages every time and ...
7
votes
3answers
959 views

Construct a command by putting a string into a tty

I managed to do this echo -n "command" > /dev/tty1 The letters appear, and the cursor moves, but they are "ghosts" - if you hit enter, nothing happens (they are not in stdin). Edit: In the ...
0
votes
0answers
23 views

printf>stdin unusable with read [duplicate]

With read, sending "a" to stdin is not equivalent to pressing "a" (or use your favorite letter/key). Tested this: ~$ read -n1 & fg [1] 11620 read Then "typed" "a" into the read process stdin ...
0
votes
0answers
23 views

Kernel loglevel and console manipulation

I want to have two console kernel arguments, one /dev/tty2 for screen and one /dev/ttyAM0 for serial debugging. I can achieve that simply with: console=ttyAM0,115200 console=tty2 I want /dev/ttyAM0 ...
1
vote
1answer
60 views

Backspace and CTRL commands print question marks

I've run into a peculiar issue on a fresh gentoo install. Within the console, the backspace key prints an adorable little question mark inscribed within a square instead of its intended function. ...
2
votes
1answer
54 views

Capture console output from existing process(es) to file [duplicate]

We have a requirement to troubleshoot an existing system running Busybox, we have Telnet access. It would be helpful to log the system's console output (ideally the last n lines of it) to a file for ...
1
vote
3answers
3k views

RHEL:Change Screen Resolution of Virtual Console

I am working on a RHEL 6.3 Workstation. And the monitor is a HD AOC Monitor. Problem I am facing is whenever this machine starts up, it runs with maximum screen resolution. It is a big screen and ...
7
votes
3answers
8k views

How do I connect a serial terminal to a KVM instance?

Perhaps I'm misunderstanding what KVM is capable of, but the ability to add/remove hardware on the VM seems to imply I can add a serial port that then acts as a terminal. So, my questions are: ...
0
votes
1answer
41 views

Remote terminal application

Does anyone know if there exist an application which allows admin run other apps in kind of desktop environment. What i mean is a kind of VNC application which only gives user the terminal console, ...
1
vote
1answer
59 views

change linux text console scrolling speed - without rebooting

Is there any way to change to the text console scrolling speed without rebooting? Currently using Fedora, but non-distribution-specific answers appreciated. ...
1
vote
1answer
87 views

loadkeys has (almost) no effect

I'm running CentOS 6.4 on vagrant and then doing a vagrant SSH into the box. I've been trying to get backspace to work correctly for a while now (as chronicled here: Centos Terminal Configuring ...
15
votes
3answers
2k 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.
3
votes
1answer
114 views

Output shutdown messages to multiple consoles

I have configured my system to direct console output on boot to serial and vga using kernel parameters. Serial is the last argument in the kernel parameters and will be the default used for ...
3
votes
1answer
34 views

Can I remap SHIFT+CAPS LOCK in a virtual terminal?

I recently acquired an old netbook which has no backslash/pipe key. I have successfully remapped the caps lock to backslash using loadkeys. I would like to map SHIFT+CAPS LOCK to the pipe key in a ...
1
vote
1answer
65 views

How to stop displaying error logs from the terminal in linux?

I am using Linux, there are some error logs related to some applications are over flooding one of my terminal. They look like this: 20/01 15:54:29.894138[3319][65536] Unexpected exception during ...
0
votes
2answers
1k views

Bootloader fails to load linux kernel

I upgraded linux kernel from 2.6.32 to 3.0.7 but now bootloader isn't able to load the kernel image. Specifically, boot procedure freezes after: Starting kernel ... Uncompressing Linux... done, ...
2
votes
2answers
252 views

tmux: shared session, one user in a pane, another in another pane, two different cursors

I've decided to try tmux: have been reading the docs and googling around, trying to find a way to have two users sharing a session, each with a different cursor. However, giving 777 permissions to ...
1
vote
1answer
62 views

Console TTY displays on integrated Intel HD3000's monitor instead of NVidia GPU's monitor

I've got two monitors attached to my desktop PC's GPU (a GeForce 560Ti) that work fine for X. When I switch to the console TTY, however, both monitors show nothing. The console TTY is being ...
4
votes
1answer
148 views

Change the status of the keyboard leds, from within an X session, without root access

I am trying to force the capslock led on. xset does not work for me, so I am trying to use setleds. In a graphical console, this command returns: > LANG=C setleds -L +caps KDGKBLED: Inappropriate ...
1
vote
2answers
53 views

`nl` invocation soaking all input before numbering

How can this be done? I don't see any applicable option in the manual. I have positively checked that indentation breaks after ten million lines. You can check it like: $ (for i in `seq 0 ...
0
votes
1answer
51 views

Running Linux in text mode - blank diamonds instead of Chinese/Punjabi etc. characters

While in the text mode and using, for example, Chinese/Simplified or India/Punjabi locale I get blank diamond symbols in the console in place of the characters. I am running Xubuntu with ...
3
votes
1answer
88 views

How do I view cp1251 text file in UTF-8 console?

Attempt 1: $ less subs.srt "subs.srt" may be a binary file. See it anyway? <C8><F2><E0><EB><FC><FF><ED> ... Attempt 2: $ LANG=ru_RU.CP1251 less subs.srt ...
0
votes
1answer
99 views

Blank console when exiting X

I'm running Linux Mint 17.1, but this probably applies to most distros anyway. I just installed LM cleanly from a bootable USB (which is fine - I checked) and I need to install the appropriate ...
1
vote
1answer
35 views

How do I keep running a command in the same area of the console window? (“w”)

I'm looking at the output of w: ehryk@ArchHP ~> sudo w 14:12:37 up 4:08, 4 users, ...
1
vote
0answers
30 views

What is the difference between X11 keymapping and virtual console keymapping

In linux we have X11 which governors keyboard layouts but sadly any changes made there don't affect the system as a whole so in a tty you are left with standard qwerty no matter what your X11 ...
1
vote
1answer
57 views

Default vt number at Linux startup

Whenever we boot into linux, then the default vt used by the kernel is 1. And X starts either on vt2 or on vt7. We can switch back to vt1 with Ctrl+Alt+F1 to see the logs or messages. Is there any ...
2
votes
1answer
62 views

Some commands fail when active display/vt is different from where they are running, How to fix/workaround that?

These applets are running on X at DISPLAY=:0 (fgconsole 7). NetworkApplet Related to nm-applet/NetworkManager run this command sleep 10;nmcli nm enable false;beep (you must be connected to the ...
6
votes
2answers
104 views

How to determine the current color of the console output?

I know that, if a coloured terminal is available, one can colour the output of it using escape characters. But is there a possibility to find out, which colour the output is currently being displayed ...
3
votes
2answers
74 views

Remap keyboard on the Linux console

I'm using Debian and I want to remap my keyboard because it has some problem. I googled and found xmodmap. But it doesn't work in graphicless mode, like tty1.
1
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0answers
30 views

adding a console target to GDM

In KDM, KDE's display manager, there's an option to exit the DM and login at the terminal. Gnome's display manager does not have this option. Here's the entry for Cinnamon: [Desktop Entry] ...
2
votes
1answer
132 views

Screen size in FreeBSD in VirtualBox

I am installing FreeBSD 10.0 on VirtualBox, and I can't figure out how to change the size of my screan, in the virtualbox? The freebsd in the virtualbox treats my screen like it's 1/4th the size of ...
5
votes
3answers
4k views

How do I change the screen font size when using a virtual terminal

Using LDXE and Ubuntu, I can log into a virtual terminal via Ctrl+Alt+F1. The text is far too small. How do I change the screen resolution to get a larger font?