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Questions tagged [console]

The system console is an interface used by human to control the computer. Basically, it consists of a keyboard and a monitor that can provide a text user interface.

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How to set VirtualBox VM to use wanted resolution without needing to edit bootloader config or passing kernel parameters

I want to test many of liveCD distributions in VirtualBox (specifically, want to test their installers). Some linux distributions use curses based installers (not X11). By default VM's window is ...
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Virtual terminal TTY always “hits enter” and does not let me type a password

When I change to a virtual terminal (e.g. tty3) by hitting Ctrl+Alt+F3 I can not log in. After entering my username and hitting Enter the terminal somehow starts "virtually hitting enter". It just ...
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0answers
98 views

How exactly do the Linux display device files work? [closed]

I don't really understand how the Linux display device files work and interact together. What files in the /dev tree need to go where and where do they need to connect/point to, in order to show a ...
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Opening multiple console tabs executing a different task in each from a shell script?

For a script performing multiple actions I want to execute certain actions in newly created console tabs. The current script is like this qdbus $KONSOLE_DBUS_SERVICE $KONSOLE_DBUS_WINDOW newSession ...
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3answers
35 views

How to start an app in a remote desktop

I have a GUI app that I can run from a terminal window on a Raspberry Pi desktop and it displays the GUI output on the screen attached to the HDMI port. In the terminal window I run a command like ...
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2answers
98 views

What kind of language construct is the swung dash (tilde, ~)?

The swung dash can be used in place of the home directory. Depending on the current user it has a different value. In this sense it works like a variable. Yet it is not a variable. I can't do echo $~...
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2answers
150 views

FreeBSD 11.2 - 256 color support in console window

I installed FreeBSD 11.2 on my DELL Latitude E7470 with UEFI (might be important). By default it does not install a GUI and that is fine by me (for now). Using the <Alt>+<Fn> keys I can ...
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1answer
230 views

FreeBSD 11.2 - Default resolution on console window

I installed FreeBSD 11.2 on my DELL Latitude E7470 with UEFI (might be important). By default it does not install a GUI and that is fine by me (for now). Using the <Alt>+<Fn> keys I can ...
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2answers
1k views

What is `/dev/console` used for?

From this answer to Linux: Difference between /dev/console , /dev/tty and /dev/tty0 From the documentation: /dev/tty Current TTY device /dev/console System console /dev/tty0 Current ...
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1answer
35 views

Detect key status in zsh from the Linux console

Can zsh detect a key status without a tool that depends on a graphical session? I've overwritten the getty@tty1 service to autologin, and zlogin executes sway. I would like to prevent running a ...
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1answer
109 views

Console text red at boot (CentOS 7)

When CentOS 7 is booting, the text becomes red. This happens through IPMI and a direct connected VGA screen. The server seems to be OK, but I would like to know why all console text is red. The OS is ...
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1answer
28 views

The console terminal demonstrate by who

When I issue the command who in a bash terminal: $ who me console 2018-11-09 07:13 me ttys000 2018-11-09 07:13 me ttys001 2018-11-09 07:13 The manual states: who - show who ...
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1answer
72 views

Log Console Output [duplicate]

Is there a way to not only protocol/log the console inputs (like the history), but also the console output by default (without the constant usage of pipes)?
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0answers
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RHEL GUI offers Automatic Time Zone Option. Is there a way to set that option from console?

As you can see the Automatic Time zone is off in GUI. Is there a command to set it on? Example: if Automatic Date and Time is selected to be off from GUI, it can be changed from console with: ...
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1answer
34 views

Trying to get script in Linux console to show duplicate file names instead of an error

I am trying to write a script that is going to run in the Linux environment. It will look for .jpeg files within a tree of directories and then copy them to a directory called jpegs. I want to get ...
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1answer
317 views

startx failing from debian console in virtualbox VM: (EE) open /dev/dri/card0: No such file or directory

I'm running debian testing within a VirtualBox VM (Windows 10 host, VBox 5.2.20), and booting to the console. I used to be able to run startx just fine once logged in, but for the past while it hasn'...
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0answers
59 views

How to compose chained dead keys in `kbd`?

In Linux Console, is there a way to make hitting a dead key twice print the corresponding dead character on screen? as it is the case in X11? For instance I want the logical ^^ sequence to send a ...
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0answers
136 views

Debian not recognizing my ttyS0 / console redirection not working

I have a fitlet2 (https://fit-iot.com/web/products/fitlet2/) which has a serial port. I can connect to the serial port of the fitlet2 with screen from my computer (screen /dev/ttyUSB0 115200) and ...
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1answer
32 views

Screen timing out on console mode

I am running Fedora 28 and after a kernel update my text console screen(tty2,3 etc) times out in 1 second or less. I used setterm -blank 0 in my GUI terminal to rectify the problem but that gave me ...
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1answer
83 views

Does Linux kernel uses fonts from /usr/share/consolefonts? Is it safe for working kernel?

OS: Ubuntu 18.04. I think it is distribution-independent. The Arch Linux uses the same principle, but do it by another way. I set the tty's font by editing the /etc/default/console-setup file: ...
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1answer
154 views

How to resize TTY console width?

I'm on FreeBSD. I want to set console width (just console, not ssh or telnet). I used this command: stty cols 132 Is this work for just console or worked for all of the connections (console, ssh ...
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1answer
87 views

st terminal: Clone exactly colors of console to terminal

I have serious problemm when trying to have same view - exactly same colors of console then port them to terminal. Console uses linux or screen that supports only 8 colors, the problem is terminal ...
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1answer
45 views

detecting cli script execution and not cronjob script execution

Is there a way to detect if i run a shell script by hand in the console or if the cron starts the script (e.g. using crontab) ? Edit: Usage example: manualy i want to show a progress bar for ...
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75 views

libvirt and kvm/qemu, password on console redirection/serial doesn't work

I have added a serial,and a console to connect my vm without X using this command. virsh console myvm Unfortunately my vm has a luks encrypted root and..I can put the password only from graphical ...
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28 views

Creating a device under /dev/input

I am picking apart the inputattach tool from LinuxConsole, and I can't seem to figure out how it actually creates a file handler under /dev/input. Can someone please identify the line?
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1answer
22 views

How can I create a quick access command in the terminal for an application

I want to create a quick shorcut to a file wich is: file.py it is located in "/myfiles/folder1/file.py" I want to access just typing in the the terminal: "file" this file has a working directory so ...
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1answer
104 views

On Qubes OS 4.0, how to get xl console access to sys-net?

I tried xl console sys-net which is something that works for any other VM (AppVM, TemplateVM), it even works for sys-net-dm (I don't know what that is though) [ctor@dom0 ~]$ time sudo xl console ...
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1answer
29 views

Searching a tool to visualize memory

I am searching a program which can show the memory as a colorful grid in console. For example showing used, unused and changed stuff. This is not for monitoring, its simply for a screen which is ...
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1answer
34 views

mplayer (via console) doesn't always show audio file duration - how to change behaviour?

I use mplayer principally to play audio files from the Linux console. Most of the time, mplayer happily shows me the duration of the file and the runtime so far (note: I've paused both playbacks just ...
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1answer
50 views

Two screens/monitors in Linux console (FB not Xorg)

I try to 'mirror' a Linux console (not Xserver) from a Dell laptop to an external monitor connected with HDMI cable. The graphic card is Intel UHD 620. What's the best approach? Initial net search ...
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1answer
179 views

Can the Linux console display 16 colors?

I'm reading the manual page terminfo and I wonder if the Linux console may use the terminal type linux-16color instead of the terminal type linux. prompt% infocmp linux linux-16color comparing linux ...
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1answer
1k views

Print something in console in the same place of the previous echo, with a sort of negative echo

In bash you can cast a command named clear to clear all the screen commands. And with echo you can print whatever you want onscreen.. In my simple scripts I often have the need of print a percentage ...
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61 views

How to use external monitor through HDMI without X / graphical environment?

I'm running Arch Linux on a laptop. I usually log in to the TTY console and only startx when I need to. I have an HDMI output and would like to use an external monitor. It works fine with xrandr but ...
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1answer
417 views

Unable to log in to tty1 password incorrect? [closed]

In the console tty1 I can't access with my login and password. It states that my password is incorrect however my password is correct?
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1answer
122 views

Linux VT supports 8 colors but there are actual 16 distict ones. Why is so that?

According to Wiki's https://en.wikipedia.org/wiki/ANSI_escape_code#8-bit article there are 8 "Standard colors" and 8 "High-intensity colors". When I checked terminal capability of the Linux' virtual ...
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133 views

Slow boot when using kernel parameter console=ttyS0 to hide all output

For an end-user friendly operating system, I am creating a basic linux distribution using the Buildroot tool. I am using Syslinux/Isolinux as the bootloader and the Linux 4.14.54 (Long Term Support) ...
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11 views

configuring codepoints in virtual console

I am trying to display Hindi and English characters in a virtual terminal. I am able to display these characters for English and Hindi separately but I am not able to display them together. As per my ...
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0answers
150 views

How can I copy text from Links (webpage) to the console?

I have been building a Linux From Scratch system and I have installed the Links web browser on it, which I am running in graphical mode via DirectFB (I have not yet installed the X Window System). I ...
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3answers
289 views

How to check if the current shell session is in the gui or the tty

Which environment setting in the zsh shell will allow me to find whether I am in the x-server or if I am in the console? I am trying to find a way to implement having different setting in my .zshrc ...
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1answer
48 views

Can I prevent keyboard input from being used by console?

I have a linux box with two keyboards, two displays, and one mouse. One of the displays is running an X session, and the other is running a text console, started by mingetty. Currently, the mouse is ...
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1answer
32 views

tmux step through open windows automatically

On my VPN server, I have some scripts that I run in separate windows, and I'd like to step through them every few seconds like the GIF below. Is there an existing tmux binding or one I could create ...
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1answer
85 views

Is there a way to disable only root login via serial console on RHEL6?

I'm trying to disable root login via the serial console in RHEL 6. Based on this link from redhat (https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/4/html/Security_Guide/s2-...
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2answers
1k views

How to use `systemd-ask-password-console.service`

How I am supposed to use systemd-ask-password-console.service? My aim is to trigger a password prompt and ask for input on some terminal. Currently I am trying it like this: Start systemd-ask-...
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1answer
243 views

What happens when I forget to logout in TTY?

This is something I have asking myself for some time. Imagine the following: I press CTRL+ALT+F1 to switch to TTY1 I login there and execute a command I switch back to xorg with CTRL+ALT+F7 I forget ...
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0answers
30 views

grep - separation after different file

I'm using grep to look for a specific string in log-files. It's sometimes a little tricky to see the output refers to the next file already, like: 354058:c1.com/client-01.log:13:30:04 INFO: ...
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1answer
210 views

Suitables TERM variable values for a serial console

To enable a serial console on Linux, one uses getty (most usually, its variant agetty). This binary takes as argument, among other, the value to initialize the TERM variable with. On Debian, with Sys ...
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187 views

Can't change kernel.printk value

I want to set kernel.printk value to 5 4 1 1 for disable logging on booting but when I try sysctl -w kernel.printk="5 4 1 1" I get error: sysctl: setting key "kernel.printk": Invalid argument ...
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0answers
33 views

How to Capture all output sent to Serial Buffer?

I need to capture all the output sent to serial port in a file, once it has successfully done pivot root to rfs from initrd, or from starting of rcS. I have tried using script but either it blocks the ...
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0answers
48 views

Completion and history activation in a python virtualenv

I am learning Python and nowadays I discover the use of virtualenv. I ask this question in S/O without answers, so maybe this is a Debian specific problem. I run LMDE2 (Debian 8 based) with Python 2....
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0answers
106 views

Opening character device for reading in parallel by multiple processes on Linux

I would like to open a character device e.g. /dev/tty1 by multiple processes in a way that would not interfere reads between them. I noticed that if one process consumes a byte, no other process would ...